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

BUS

D+

D-

GND

( ) FOR MAX5007 ONLY

SELR

1µF CERAMIC

D-

GND GND

27Ω

MAX5005 MAX5006 MAX5007

ENR

OUT

RESET

(RESET)

27Ω

3.3V C

OUT

1µF

3.3V USB

CONTROLLER

RSTD+

D+

D-

TOP VIEW

D+

GND

() FOR MAX5007 ONLY.

OUT

MAX5005 MAX5006 MAX5007

µMAX

GND

RESET/(RESET)D-

ENRSELR

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

= +70°C)

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

Thermal Resistance (θ

)...............................................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

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

GND

OUT

= 100mA 4.0 5.5 V

LOAD

Measured at GND 25 50 µA

VIN = 4.0V to 5.5V, I

= 10mA 20 30

LOAD

= 150mA 300 400

LOAD

OUT

Rising edge of V R

= 500Ω

JSHDN

JSHD N

MAX500_ACUB 2.92 3.05 3.18

MAX500_BCUB 2.75 2.89 3.01

Connects R

TERM

150 mA

= 0 to 100mA 3.2 3.3 3.4 V

OUT

= 5.5V 1 µA

to V

OUT

500 µs

160

100 200 300 ms

75 µs

0.2 x

OUT

0.8 x

OUT

to D-

to D+

0.8 x

OUT

0.2 x

OUT

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

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

tested.

Note 2: Dropout voltage is defined as V

- 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

OUT

ENR Input Voltage

TERM

enabled

disabled

0.8 x

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)

LKG

> 1.0V, I

OUT

> 2.7V, I

Reset not asserted -1.0 1.0 µA

= 1.0V, I

OUT

> V

OUT

TH(MIN)

asserted

> V

OUT

TH(MAX)

> V

TH(MAX)

= 1.0V, I

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

OUT

0.8 x

OUT

0.4

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

OUT

1MHz, 100mVp-p signal

Unpowered 24

ENR = OUT 40

applied at D+ and D-, V

OUT

= 3.3V

Unpowered 47

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

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

= 150mA

OUT

SUPPLY VOLTAGE (V)

MAXIMUM PULSE DURATION vs.

RESET THRESHOLD OVERDRIVE

250

200

MAX5005-7 toc01

150

100

PULSE DURATION (µs)

= 0

OUT

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

0306090120 150

DROPOUT VOLTAGE vs. LOAD CURRENT

4515 75 105 135

LOAD CURRENT (mA)

MAX5005-7 toc03

POWER-SUPPLY REJECTION RATIO vs.

FREQUENCY

-5

-10

-15

-20

-25

-30

PSRR (dB)

-35

-40

-45

-50

-55

-60

0.01 0.1

OUT

FREQUENCY (kHz)

REGION OF STABLE C

= 1µF

110

OUT

MAX5005-07 toc04

ESR vs. LOAD CURRENT

150

ESR (Ω)

OUT

125

100

= 1µF

OUT

= 4.7µF

MAX5005-7 toc06

OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

3.35

3.34

3.33

3.32

3.31

3.30

3.29

OUTPUT VOLTAGE (V)

3.28

3.27

3.26

3.25

3.5 4.0 4.5 5.0 5.5

= 0

OUT

= 150mA

OUT

SUPPLY VOLTAGE (V)

OUTPUT NOISE

OUT

1mV/div

MAX5005-7 toc05

MAX5005-7 toc07

STABLE REGION BELOW THE CURVE

0604515 30 75 90 105 120 135 150

LOAD CURRENT (mA)

200µs/div

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