MAXIM MAX5005, MAX5006, MAX5007 User Manual

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General Description

The MAX5005/MAX5006/MAX5007 are low-dropout
(LDO), micropower linear voltage regulators with an
integrated microprocessor (µP) reset circuit for use with
USB peripheral devices. Each device is available with a
fixed +3.3V output voltage and can deliver up to
150mA load current. Each device features ±15kV tran­sient voltage suppression (TVS) as well as precision

1.5kΩ data-line termination resistors for USB digital sig­nals making them ideal for use with USB peripherals.

The MAX5005/MAX5006/MAX5007 include an internal
reset circuit that enables the USB microcontroller
100ms after the LDO regulator output voltage reaches
regulation. Reset outputs are available in push-pull
(active-low or active-high) and open-drain (active-low)
options.

The MAX5005/MAX5006/MAX5007 are optimized for
use with a 1µF ceramic output capacitor. Each device
includes thermal shutdown protection, output short-cir­cuit protection, and output to input reverse leakage pro­tection. These devices also include an active-low
manual reset input.

The MAX5005 features an open-drain reset output, the
MAX5006 features an active-low push-pull reset output,
and the MAX5007 features an active-high push-pull
reset output. Each device is available in a space-saving
10-pin µMAX package.

Applications

USB Peripherals

Hand-Held Instruments

Features

♦ Integrated ±15kV Transient Voltage Suppressors

for D+ and D- Data Lines

♦ Pin Selectable Internal D+ and D- Termination

Resistors (1.5kΩ ±5%)

♦ Integrated Microprocessor Reset Circuit with

100ms (min) Timeout

♦ 3.3V Output with ±3% Accuracy

♦ 25µA Quiescent Current at Full Load

♦ Small 1µF Output Capacitor

♦ Output to Input Reverse Leakage Protection

♦ Thermal and Short-Circuit Protection

♦ 10-Pin µMAX Package

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

________________________________________________________________ Maxim Integrated Products 1

Pin Configuration

Ordering Information

19-2035; Rev 1; 11/02

*Insert “A” for a 7.5% reset threshold and “B” for a 12.5% reset
threshold.

Typical Operating Circuit

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART

MAX5005_CUB* 0°C to +70°C 10 µMAX

MAX5006_CUB* 0°C to +70°C 10 µMAX

MAX5007_CUB* 0°C to +70°C 10 µMAX

TEMP

RANGE

PIN­PACKAGE

RESET

OUTPUT

Op en-

D r ai n Low

Push-Pull

Low

Push-Pull

High

USB

PORT

V

BUS

C

IN

D+

D-

GND

( ) FOR MAX5007 ONLY

SELR

5V

1µF
CERAMIC

IN

D-

GND GND

27Ω

MAX5005
MAX5006
MAX5007

ENR

OUT

RESET

(RESET)

MR

27Ω

3.3V
C

OUT

1µF

3.3V USB

CONTROLLER

V

CC

RSTD+

D+

D-

TOP VIEW

1

IN

2

D+

3

GND

4

5

() FOR MAX5007 ONLY.

10

OUT

9

MAX5005
MAX5006
MAX5007

µMAX

GND

8

MR

7

RESET/(RESET)D-

ENRSELR

6

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN= +5V, I

OUT

= 0, C

OUT

= 2.2µF, TA= 0°C to +70°C, unless otherwise noted. Typical specifications are at TA= +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

IN to GND .................................................................-0.3V to +6V

D+, D- to GND..........................................................-0.3V to +6V

MR to GND ..............................................-0.3V to (V

OUT

+ 0.3V)

RESET, RESET to GND, Push-Pull............-0.3V to (V

OUT

+ 0.3V)

RESET to GND, Open-Drain.....................................-0.3V to +6V

OUT, SELR, ENR to GND .........................................-0.3V to +6V

Maximum Current to Any Pin

(except IN, OUT, D+, D-).............................................± 20mA

Short-Circuit Duration ....................................................Indefinite

Continuous Power Dissipation (T

A

= +70°C)

10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW

Thermal Resistance (θ

JA

)...............................................180°C/W

Operating Temperature Range...............................0°C to +70°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Input Voltage Range V

Supply Current I

REGULATOR

Guaranteed Output Current I

Output Voltage V

Dropout Voltage (Note 2) ∆V

Output Current Limit VIN = 5.5V 165 350 mA

Input Reverse Leakage Current VIN = 0, V

Startup Response Time

Thermal Shutdown Temperature T

Thermal Shutdown Hysteresis ∆ T

RESET CIRCUIT

Reset Threshold (Note 3) V

Reset Timeout Period t

V

to Reset Delay t

OUT

MR Input Voltage

MR Minimum Input Pulse Width 1 µs
MR Glitch Rejection 120 ns
MR to Reset Delay 500 ns
MR Pullup Resistance to OUT 10 25 45 kΩ

SELR Input Voltage

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

I

IN

GND

OUT

OUT

DO

= 100mA 4.0 5.5 V

LOAD

Measured at GND 25 50 µA

VIN = 4.0V to 5.5V, I

I

= 10mA 20 30

LOAD

I

= 150mA 300 400

LOAD

OUT

Rising edge of V
R

= 500Ω

L

JSHDN

JSHD N

MAX500_ACUB 2.92 3.05 3.18

TH

MAX500_BCUB 2.75 2.89 3.01

RP

RD

V

IL

V

IH

V

V

IL

IH

Connects R

Connects R

TERM

TERM

150 mA

= 0 to 100mA 3.2 3.3 3.4 V

OUT

= 5.5V 1 µA

to V

IN

OUT

500 µs

160

20

100 200 300 ms

75 µs

0.2 x

V

OUT

0.8 x

V

OUT

to D-

to D+

0.8 x

V

OUT

0.2 x

V

OUT

mV

o

o

V

V

V

C

C

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VIN= +5V, I

OUT

= 0, C

OUT

= 2.2µF, TA= 0°C to +70°C, unless otherwise noted. Typical specifications are at TA= +25°C.) (Note 1)

Note 1: All devices are 100% tested at T

A

= +25°C. Limits over temperature are guaranteed by characterization and not production

tested.

Note 2: Dropout voltage is defined as V

IN

- V

OUT

when V

OUT

is 2% below the value of V

OUT

for VIN= V

OUT

+ 1V.

Note 3: Specification is guaranteed to ±4σ limit.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SELR Input Current SELR = GND or OUT -1 1 µA

0.2 x

V

OUT

V

ENR Input Voltage

V

V

R

IL

IH

TERM

R

TERM

enabled

disabled

0.8 x

V

OUT

ENR Input Current ENR = GND or OUT -1 1 µA

Open-Drain RESET Output Low
Voltage (MAX5005)

Open-Drain Reset Output Leakage
Current (MAX5005)

Push-Pull RESET Output Voltage
(MAX5006)

Push-Pull RESET Output Voltage
(MAX5007)

V

I

LKG

V

V

V

V

> 1.0V, I

V

OUT

OUT

> 2.7V, I

OL

Reset not asserted -1.0 1.0 µA

V

= 1.0V, I

OUT

OL

V

> V

OUT

TH(MIN)

asserted

V

> V

OUT

OUT

OUT

TH(MAX)

> V

TH(MAX)

= 1.0V, I

OH

OL

OH

reset not asserted

V
reset not asserted

V
asserted

= 50µA, reset asserted 0.3

SINK

= 3.2mA, reset asserted 0.4

SINK

= 50µA, reset asserted 0.3

SINK

, I

= 3.2mA, reset

SINK

, I

SOURCE

, I

SINK

SOURCE

= 500µA,

= 3.2mA,

= 150µA, reset

0.8 x

V

OUT

0.8 x

V

OUT

0.4

0.4

V

V

V

V

USB OPTIONS AND TRANSIENT SUPPRESSION

D+/D- R

D+/D- Input Leakage Current V

D+ to D- Capacitance

D+, D- Capacitance to GND

Impedance ENR = GND, SELR = GND or OUT 1425 1500 1575 Ω

TERM

= V

ENR

1MHz, 100mVp-p signal

= 3.3V -1 1 µA

OUT

ENR = OUT 5.5

applied at D+ and D-,

= 3.3V

V

OUT

1MHz, 100mVp-p signal

Unpowered 24

ENR = OUT 40

applied at D+ and D-,
V

OUT

= 3.3V

Unpowered 47

pF

pF

ESD Trigger Voltage dV/dt < 1V/ns, VD+ or VD- > 3.6V 3.6 5 V

Surge Trigger Voltage dV/dt < 2V/µs, VD+ or VD- > 3.6V 3.6 16 V

Clamping Voltage 6A, pulse width = 200ns to 40µs16V

Surge Current 16V, pulse width = 200ns to 40µs ±6A

Human Body Model MIL-STD-883 ±16

D+/D- to GND ESD

Contact Discharge IEC1000-4-2
(EN61000-4-2)

±8

kV

Air Discharge IEC1000-4-2 (EN61000-4-2) ±15

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VIN= +5V, I

OUT

= 0, C

OUT

= 2.2µF, unless otherwise noted.)

27.0

26.5

26.0

25.5

25.0

24.5

24.0

23.5

GROUND-PIN CURRENT (µA)

23.0

22.5

22.0

3.5 4.0 4.5 5.0 5.5

GROUND-PIN CURRENT

vs. SUPPLY VOLTAGE

I

= 150mA

OUT

SUPPLY VOLTAGE (V)

MAXIMUM PULSE DURATION vs.

RESET THRESHOLD OVERDRIVE

250

200

MAX5005-7 toc01

150

100

PULSE DURATION (µs)

I

= 0

OUT

50

0

110100

RESET THRESHOLD OVERDRIVE, VTH - V

RESET OCCURS ABOVE THIS LINE

(mV)

OUT

300
275
250

MAX5005-7 toc02

225
200
175
150
125
100

DROPOUT VOLTAGE (mV)

75
50
25

0

0306090120 150

DROPOUT VOLTAGE
vs. LOAD CURRENT

4515 75 105 135

LOAD CURRENT (mA)

MAX5005-7 toc03

POWER-SUPPLY REJECTION RATIO vs.

FREQUENCY

0

-5

-10

-15

-20

-25

-30

PSRR (dB)

-35

-40

-45

-50

-55

-60

0.01 0.1

C

OUT

FREQUENCY (kHz)

REGION OF STABLE C

= 1µF

110

OUT

MAX5005-07 toc04

ESR vs. LOAD CURRENT

150

ESR (Ω)

C

OUT

125

100

C

= 1µF

75

50

OUT

C

OUT

= 4.7µF

MAX5005-7 toc06

OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

3.35

3.34

I

3.33

3.32

3.31

3.30

3.29

OUTPUT VOLTAGE (V)

3.28

3.27

3.26

3.25

I

3.5 4.0 4.5 5.0 5.5

= 0

OUT

= 150mA

OUT

SUPPLY VOLTAGE (V)

OUTPUT NOISE

V

OUT

1mV/div

MAX5005-7 toc05

MAX5005-7 toc07

25

STABLE REGION BELOW THE CURVE

0

0604515 30 75 90 105 120 135 150

LOAD CURRENT (mA)

200µs/div

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

(VIN= +5V, I

OUT

= 0, C

OUT

= 2.2µF, unless otherwise noted.)

1.0ms/div

LOAD-TRANSIENT RESPONSE

3.3V

3.3V

MAX5005-7 toc10a

I

LOAD

V

OUT

50mV/div

V

OUT

50mV/div

C

OUT

= 2.2µF

C

OUT

= 1.0µF

20mA

0V

100µs/div

LINE-TRANSIENT RESPONSE

5.25V

4.75V

3.3V

MAX5005-7 toc11b

VIN

200mV/div

V

OUT

50mV/div

I

OUT

= 10mA

C

OUT

= 1µF

LOAD-TRANSIENT RESPONSE

MAX5005-7 toc10b

1.0ms/div

20mA

3.3V

3.3V

I

LOAD

V

OUT

50mV/div

C

OUT

= 10µF

C

OUT

= 4.7µF

V

OUT

50mV/div

0V

100

µs/div

LINE-TRANSIENT RESPONSE

4.75V

3.3V

MAX5005-7 toc11a

VIN

200mV/div

5.25V

V

OUT

50mV/div

I

OUT

= 10mA

C

OUT

= IµF

50ms/div

TURN-ON/TURN-OFF RESPONSE

MAX5005-7 toc08

VIN

5V/div

RESET
5V/div

RL = 1kΩ

V

OUT

5V/div

1ms/div

STARTUP RESPONSE

MAX5005-7 toc09

V

IN

5V/div

V

OUT

1V/div

RL = 1kΩ

TVS PEAK POWER vs. PULSE WIDTH

1000

100

PEAK POWER (W)

10

D+ OR D- WITH RESPECT TO GROUND

1

0.01 1 100

0.1 10
PULSE WIDTH (µs)

MAX5005-7 toc12

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

6 _______________________________________________________________________________________

Pin Description

PIN NAME DESCRIPTION

1IN

2D+

3, 9 GND

4D-

5 SELR

6 ENR

RESET

7

RESET

8 MR

10 OUT

Regulator Input. Supply voltage ranges from +4.0V to +5.5V. Bypass with a 1µF ceramic capacitor
to ground.

D+ ESD/Transient Suppression Input. Connect directly to USB port D+ data input. SELR high and
ENR low connects D+ to OUT through a 1.5kΩ resistor.

Ground. This pin also functions as a heatsink. Solder to large pads or the circuit board ground
plane to maximize thermal dissipation.

D- ESD/Transient Suppression Input. Connect directly to USB port D- data input. SELR low and
ENR low connects D- to OUT through a 1.5kΩ resistor.

USB Full-Speed/Low-Speed Termination Resistor Select. Logic high connects the termination
resistor to D+ for full-speed peripherals. Logic low connects the termination resistor to D- for low­speed peripherals. An internal 1.5kΩ resistor connects to OUT when ENR is low.

USB Termination Resistor Enable. When reset is not asserted, ENR low enables the termination
resistor connection. ENR high or a reset disables the termination resistor connection.

Active-Low Reset Output. RESET remains low while V
is held low. RESET remains low for the duration of the reset timeout period after the reset conditions
are terminated. (MAX5005/MAX5006 ONLY)

Active-High Reset Output. RESET remains high while V
is held low. RESET remains high for the duration of the reset timeout period after the reset
conditions are terminated. (MAX5007 ONLY)

Active-Low Manual Reset Input. A logic low forces a reset. Reset remains asserted for the duration
of the reset timeout period after MR transitions from low to high. Leave unconnected or connect to
OUT if not used. MR has an internal pullup resistor of 25kΩ to OUT.

Voltage Regulator Output. Fixed +3.3V. Sources up to 150mA. Bypass with a 1µF (min) capacitor
for full rated performance.

is below the reset threshold or while MR

OUT

is below the reset threshold or while MR

OUT

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

_______________________________________________________________________________________ 7

Detailed Description

The MAX5005/MAX5006/MAX5007 are USB applica­tion-specific, low-dropout, low-quiescent current linear
regulators with an integrated µP reset circuit (see
Figure 1). The devices drive loads up to 150mA and
are available with a fixed output voltage of +3.3V.
Features include 1.5kΩ D+ and D- termination resistors
and ±15kV transient voltage suppression (TVS) in
accordance with IEC1000-4-2 (EN61000-4-2) Air
Discharge Method and MILSTD883C- Method 3015-6
making the MAX5005/MAX5006/MAX5007 ideal for use
with USB peripheral devices. The internal reset circuit
monitors the regulator output voltage and asserts a
reset signal when the output is typically -7.5% out of
regulation for MAX500_ACUB and -12.5% out of regula­tion for MAX500_BCUB.

Reset Circuit

The reset supervisor circuit is fully integrated in the
MAX5005/MAX5006/MAX5007, and uses the same ref­erence voltage as the regulator. Two supply tolerance
reset thresholds, typically -7.5% and -12.5%, are avail­able for each type of device.

7.5% reset: Reset does not assert until the regulator
output voltage is at least -3.6% out of tolerance and
always asserts before the regulator output voltage is

-11.5% out of tolerance.

12.5% reset: Reset does not assert until the regulator
output voltage is at least -8.8% out of tolerance and
always asserts before the regulator output voltage is

-16.7% out of tolerance.

Reset Output

The MAX5005/MAX5006/MAX5007 µP supervisory cir­cuits assert a reset during power-up, power-down, and

Figure 1. Functional Diagram

THERMAL

LIMIT

ERROR

LDO

AMP

PROTECTION

ESD/

SURGE

PROTECTION

OUT

3.3V

4.0V to 5.5V

IN

REVERSE

CURRENT

PROTECTION

MAX5005
MAX5006
MAX5007

CURRENT

PROTECTION

V

REF

1.23V

GND

FULL

SPEED

D+

TVS

COMPARATOR

USB

TERMINATION

DRIVER

SELR

ENR

RESET

GND

200ms

RESET

TIMEOUT

LOW

SPEED

1.5kΩ1.5kΩ

( ) FOR MAX5007 ONLY.

OUTOUT

TVS

RESET/(RESET)

25kΩ

MR

D-

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

8 _______________________________________________________________________________________

brownout conditions. Reset is guaranteed to be logic
high or low depending on the device chosen (see
Ordering Information). RESET or RESET asserts when
V

OUT

is below the reset threshold and remains assert-

ed for at least 100ms minimum after V

OUT

rises above

the reset threshold. RESET or RESET also asserts when
MR is pulled low.

SELR and

ENR

When reset is not asserted a logic high to SELR con­nects a 1.5kΩ termination resistor from D+ to OUT for
full speed USB peripherals and a logic low connects a

1.5kΩ termination resistor from D- to OUT for low-speed
peripherals. Logic low on ENR enables the selected
termination resistor connection and logic high disables
the selected termination resistor connection. An assert­ed reset always disconnects the termination resistors.

D+ and D-

D+ and D- include transient voltage suppressors rated
at ±15kV (see USB ±15kV Transient Voltage
Suppression section).

The proprietary TVS shunt circuit passes no data
through the MAX5005/MAX5006/MAX5007, thereby
eliminating delays associated with series protection cir­cuits. D+ and D- have only 1µA of leakage current and
a typical input capacitance of 40pF at 1MHz.

Manual Reset Input

Many µP-based products require manual reset capabil­ity, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. A logic low on MR
asserts a reset while the regulator output voltage is still
within tolerance.

Reset remains asserted while MR is low and for the
reset timeout period (100ms minimum) after MR returns
high. The MR input has an internal pullup of 25kΩ (typ)
to OUT. Drive this input with TTL/CMOS logic levels or
with open-drain/collector outputs. Connect a normally
open momentary switch from MR to GND to create a
manual reset function; external debounce circuitry is
not required. If MR is driven from long cables or the
device is used in a noisy environment, connect a 0.1µF
capacitor from MR to GND to provide additional noise
immunity. For proper operation, ensure that the voltage
on MR is not greater than a diode drop above V

OUT

.

Output to Input Reverse Leakage

Protection

An internal circuit monitors the input and output volt­ages. When the output voltage is greater than the input
voltage, the internal pass transistor and parasitic
diodes turn off, and OUT powers the device. There is
no leakage path from OUT to IN. Therefore, the output

can be powered from an auxiliary supply such as a
backup battery without any need for additional blocking
diodes.

Current Limit

The MAX5005/MAX5006/MAX5007 include a current
limiter that monitors and controls the pass transistor’s
gate voltage, limiting the output current to 350mA (typ).
For design purposes, consider the current limit to be
160mA (min) to 600mA (max). The output can be short­ed to ground for an indefinite period without damaging
the part.

Thermal Protection

When the junction temperature exceeds TJ= +160°C,
an internal thermal sensor signals the shutdown logic,
turning off the pass transistor and allowing the IC to
cool. The thermal sensor turns the pass transistor on
again after the IC’s junction temperature decreases by
20°C, resulting in a pulsed output during continuous
thermal overload conditions. Thermal overload protec­tion is designed to protect the MAX5005/MAX5006/
MAX5007 in the event of fault conditions. For continu­ous operation, do not exceed the absolute maximum
junction temperature rating of T

J

= +150°C.

Operating Region and Power Dissipation

The MAX5005/MAX5006/MAX5007’s maximum power
dissipation depends on the thermal resistance of the
case and circuit board, the temperature difference
between the die junction and the ambient air, and the
rate of airflow. The power dissipation across the device
is P = I

OUT(VIN

- V

OUT

). The maximum power dissipa-

tion is:

P

MAX

= (TJ- TA) / (ΘJA)

where TJ- TAis the temperature difference between
the die junction and the surrounding air, Θ

JA

is the ther-

mal resistance of the package from junction to ambient.

The MAX5005/MAX5006/MAX5007’s ground pin (GND)
performs the dual function of providing an electrical
connection to the system ground and channeling heat
away. Connect GND to the system ground using a
large pad or ground plane. For optimum performance,
minimize trace inductance to D+, D-, and GND.

Applications Information

Capacitor Selection and Regulator

Stability

For stable operation over the full temperature range
and with load currents up to 150mA, use a 1µF (min)
output capacitor. To reduce noise and improve load
transient response, stability, and power-supply rejec­tion, use large output capacitor values such as 10µF.

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

_______________________________________________________________________________________ 9

Note that some ceramic dielectrics exhibit large capac­itance and ESR variation with temperature. With
dielectrics such as Z5U and Y5V, it may be necessary
to use 2.2µF or more to ensure stability at temperatures
below -10°C. With X7R or X5R dielectrics, 1µF should
be sufficient at all operating temperatures. Also, for
high-ESR tantalum capacitors, 2.2µF or more may be
needed to maintain stability. A graph of the Region of
Stable C

OUT

ESR vs. Load Current is shown in the

Typical Operating Characteristics.

To improve power-supply rejection and transient
response use a 1µF capacitor between IN and GND.

Negative-Going V

OUT

Transients

These devices are relatively immune to short-duration,
negative-going V

OUT

transients. The Typical Operating
Characteristics section shows a graph of the Maximum
Pulse Duration vs. Reset Threshold Overdrive for which
reset is not asserted. The graph was produced using
negative going output transients starting at V

OUT

and
ending below the reset threshold by the magnitude
indicated (Reset Threshold Overdrive). The graph
shows the maximum pulse width that a negative going
V

OUT

transient can typically have without triggering a
reset pulse. As the amplitude of the transient increases
(i.e., goes further below the reset threshold), the maxi­mum allowable pulse width decreases. Typically, a
V

OUT

transient that goes only 10mV below the reset
threshold and lasts for 75µs will not trigger a reset
pulse.

USB ±15kV Transient Voltage

Suppression

The universal serial bus (USB) simplifies interconnectiv­ity between peripheral devices and personal comput­ers. USBs offer high-speed data communication rates
(up to 12Mbps) using only two lines (D+ and D-).
CMOS based USB peripherals that utilize deep submi­cron technologies are more susceptible to electrostatic
discharge (ESD) failure due to shorter channel lengths,
shallower drain/source junctions, and lightly doped
drain structures. The MAX5005/MAX5006/MAX5007
incorporate a proprietary transient voltage suppression
(TVS) circuit for use with submicron devices.

The TVS design complies with IEC-1000-4-2 level 4
(EN61000-4-2) ±15kV Air Discharge and ±8kV Contact
Discharge as well as MIL STD 883C-Method 3015-6
level 3.

The TVS circuit handles up to 11A of surge current. The
TVS/ESD structure is directly coupled to the output of
the LDO regulator.

TVS Surge Test Information

Figure 2 shows the test circuit used to generate the
8/40µs short circuit waveform of Figure 3. Figures 4, 5,
and 6 show the actual surge current I/V characteristics
with various capacitive loads.

ESD Performance

The MAX5005/MAX5006/MAX5007 are characterized
to the following limits on D+, D-, and IN:

• ±15kV using the Human Body Model

• ±8kV using the Contact Discharge Method specified
in IEC 1000-4-2 (EN61000-4-2)

•±15kV using the Air-Gap Discharge Method speci­fied in IEC 1000-4-2 (EN61000-4-2).

Note that in order to achieve the above ESD levels on
IN, a ceramic 1µF ceramic capacitor should be con­nected from IN to GND.

ESD Test Conditions

ESD performance depends on several conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.

Human Body Model

Figure 7 shows the Human Body Model, and Figure 8
shows the current waveform it generates when dis­charged into low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the test device through a

1.5kΩ resistor.

ESD Transmission Line Pulsing

Figure 9 shows the test circuit used for transmission
line pulsing conditions. The 200ns pulsewidth has a
rise time of 4ns. Figure 10 shows the Current vs.
Voltage characteristics for various output capacitance
values.

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

10 ______________________________________________________________________________________

Figure 2. Surge Current Test Circut

Figure 4. Surge Current I/V Characteristic (C

OUT

= 0)

Figure 5. Surge Current I/V Characteristic (C

OUT

= 1µF)

Figure 6. Surge Current I/V Characteristic (C

OUT

= 10µF)

Figure 3. Test Circuit Surge Current Waveform (Short-Circuit
Load)

JENNINGS

200kΩ 20Ω

HIGH
VOLTAGE

RELAY

RF3D-26S

2µF
4kV

80µH

12

10

8

6

4

CURRENT (A)

2

0

= 0

C

OUT

D+ OR D- TO GND

8/40µs PULSE WIDTH

D+/D-

TVS
DEVICE
UNDER

TEST

0.2µF

LEAKAGE
RELAY

IP 100%

AMPERES

50%

0

0

8µs

t

1

40µs

t

TIME

2

12

10

8/40µs PULSE WIDTH

8

6

4

D+ OR D- TO GND

CURRENT (A)

2

0

C

= 1µF

OUT

12

10

8

6

4

CURRENT (A)

2

0

24608101614 1812 20

VOLTAGE (V)

8/40µs PULSE WIDTH

= 10µF

C

OUT

D+ OR D- TO GND

24608101614 1812

VOLTAGE (V)

24608101614 1812

VOLTAGE (V)

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

______________________________________________________________________________________ 11

Figure 9. Transmission Line Pulsing Setup for ESD I/V
Characteristics

Figure 11. Transmission Line Pulsing I/V Characteristic
(C

OUT

= 1µF)

Figure 10. Transmission Line Pulsing I/V Characteristic
(C

OUT

= 0)

Figure 7. Human Body ESD Test Model

Figure 8. Human Body Model Current Waveform

R

D

1500Ω

DISCHARGE

RESISTANCE

STORAGE
CAPACITOR

HIGH-

VOLTAGE

DC

SOURCE

R

C

1MΩ

CHARGE-CURRENT

LIMIT RESISTOR

C

100pF

s

10MΩ

SCOPE

V

IN

DEVICE

L

Zo = 50Ω

DEVICE
UNDER

TEST

R

IP 100%

90%

AMPERES

36.8%

10%

0

0

t

RL

TIME

t

DL

CURRENT WAVEFORM

7

6

D+ OR D- TO GND

= 0

C

5

4

3

CURRENT (A)

2

L

1

0

OUT

200ns PULSE WIDTH

PEAK-TO-PEAK RINGING

I

r

(NOT DRAWN TO SCALE)

= 4ns

t

RISE

t

= 200ns

pw

4602 810121416

VOLTAGE (V)

7

6

D+ OR D- TO GND

= 1µF

C

OUT

5

200ns PULSE WIDTH

4

3

CURRENT (A)

2

1

0

4602 810121416

VOLTAGE (V)

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS
and µP Reset

12 ______________________________________________________________________________________

Chip Information

TRANSISTOR COUNT: 890

PROCESS: BiCMOS

Figure 12. Transmission Line Pulsing I/V Characteristic
(C

OUT

= 10µF)

7

6

D+ OR D- TO GND

C

= 10µF

OUT

5

200ns PULSE WIDTH

4

3

CURRENT (A)

2

1

0

4602 810121416

VOLTAGE (V)

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13

© 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)

0.6±0.1

e

10

ÿ0.50 ±0.1

1

0.6±0.1

TOP VIEW

D2

A2

b

D1

FRONT VIEW

4X S

10

DIM

H

1

e

BOTTOM VIEW

α

E2

GAGE PLANE

A

A1

α

E1

L

L1

INCHES

MIN

-A

0.002

A1
A2 0.030 0.037 0.75 0.95

0.116

D1

0.114

D2

0.116

E1

0.114

E2

0.187

H

0.0157

L
L1

0.037 REF

0.007

b

0.0197 BSC

0.0035

c

0.0196 REF

S

0∞ 0∞ 6∞

c

MAX

0.043

0.006

0.120

0.118

0.120

0.118

0.199

0.0275

0.0106

0.0078

6∞

MILLIMETERS

MAX

MIN

-

1.10

0.05

0.15

2.95

3.05

2.89

3.00

2.95

3.05

2.89

3.00

4.75

5.05

0.40

0.70

0.940 REF

0.177

0.270

0.500 BSC

0.090

0.200

0.498 REF

SIDE VIEW

10LUMAX.EPS

PROPRIETARY INFORMATION

TITLE:

PACKAGE OUTLINE, 10L uMAX/uSOP

REV.DOCUMENT CONTROL NO.APPROVAL

21-0061

1

I

1