Rainbow Electronics MAX15011 User Manual

General Description

The MAX15009 includes a 300mA LDO regulator, a
switched output, and an overvoltage protection (OVP)
controller to protect downstream circuits from high-volt­age load dump. The MAX15011 includes only the 300mA
LDO regulator and switched output. Both devices operate
over a wide supply voltage range from 5V to 40V and are
able to withstand load-dump transients up to 45V. The
MAX15009/MAX15011 feature short-circuit and thermal­shutdown protection. These devices offer highly integrat­ed power management solutions for automotive
applications such as instrument clusters, climate control,
and a variety of automotive power-supply circuits.

The 300mA LDO regulator consumes 67µA quiescent
current at light loads and is well suited to power
always-on circuits during “key off” conditions. The LDO
features independent enable and hold inputs, as well
as a microprocessor (µP) reset output with adjustable
reset timeout period.

The switched output of the MAX15009/MAX15011
incorporates a low R

DS(ON)

(0.28Ω, typ) pass transistor
switch internally connected to the output of the LDO
regulator. This switch features accurate current-limit
sensing circuitry and is capable of controlling remote
loads. The MAX15009/MAX15011 feature an adjustable
current limit and a programmable delay timer to set the
overcurrent detection blanking time of the switch and
autoretry timeout.

The MAX15009 OVP controller operates with an external
enhancement mode n-channel MOSFET. While the moni­tored voltage remains below the adjustable threshold, the
MOSFET stays on. When the monitored voltage exceeds
the OVP threshold, the OVP controller quickly turns off the
external MOSFET. The OVP controller is configurable as a
load-disconnect switch or a voltage limiter.

The MAX15009/MAX15011 are available in a thermally
enhanced, 32-pin (5mm x 5mm), TQFN package and are
fully specified over the -40°C to +125°C automotive oper­ating temperature range.

Applications

Instrument Clusters

Climate Control

AM/FM Radio Power Supply

Multimedia Power Supply

Telematics Power Supply

Features

o 300mA LDO Regulator, Switched Output, and OVP

Controller (MAX15009)

o 300mA LDO Regulator and Switched Output

(MAX15011)

o 5V to 40V Wide Operating Supply Voltage Range

o 45V Load Dump Protection

o 67µA Quiescent Current LDO Regulator

o OVP Controller Disconnects or Limits Output

Voltage During Battery Overvoltage Conditions

o LDO Regulator with Enable, Hold, and Reset

Features

o Internal 0.28Ω (typ) n-Channel Switch for

Switched Output

o 100mA Switched Output with Adjustable Current-

Limit Blanking/Autoretry Delay

MAX15009/MAX15011

Automotive 300mA LDO Regulators with

Switched Output and Overvoltage Protector

________________________________________________________________

Maxim Integrated Products

1

Pin Configurations

19-0923; Rev 1; 2/08

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

Typical Operating Circuits and Selector Guide appear at end
of data sheet.

Pin Configurations continued at end of data sheet.

Ordering Information

+

Denotes a lead-free package.

For tape and reel, add a T after “+.”

*

EP = Exposed pad.

EVALUATION KIT

AVAILABLE

PART

TEMP RANGE

PIN­PACKAGE

PKG

CODE

MAX15009ATJ+

T3255-4

MAX15011ATJ+

T3255-4

-40°C to +125°C 32 TQFN-EP*

-40°C to +125°C 32 TQFN-EP*

TOP VIEW

OC_DELAY

OUT_LDO

IN

OUT_LDO

21

MAX15009

4567

3

N.C.

N.C.

SGND

TQFN

(5mm x 5mm)

IN

*EP

PGND

EN_PROT

EN_SW

17

8

N.C.

RESET

16

15

14

13

12

11

10

9

EN_LDO

FB_LDO

N.C.

SOURCE

GATE

N.C.

FB_PROT

CT

HOLD

N.C.

OUT_SW

OUT_SW

N.C.

N.C.

N.C.

N.C.

*EP = EXPOSED PAD

ILIM

2324 22 20 19 18

25

26

27

28

29

30

31

+

32

12

N.C.

N.C.

MAX15009/MAX15011

Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN= +14V, V

SGND

= V

PGND

= 0V, C

GATE

= 6000pF, CIN= 10µF (ESR < 1.5Ω), C

OUT_LDO

= 22µF (ceramic), C

OUT_SW

= 1µF,

V

OUT_LDO

= 5V, CT= open, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values 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.

(All pins referenced to SGND, unless otherwise noted.)

IN, GATE.................................................................-0.3V to +45V

EN_LDO, EN_SW, EN_PROT ......................-0.3V to (V

IN

+ 0.3V)

SOURCE ......................................................-0.3V to (V

IN

+ 0.3V)

OUT_LDO, FB_LDO, FB_PROT, RESET,

OC_DELAY .........................................................-0.3V to +12V

GATE to SOURCE ..................................................-0.3V to +12V

OUT_SW, ILIM, HOLD ......................-0.3V to (V

OUT_LDO

+ 0.3V)

OUT_SW to OUT_LDO ...........................................-12V to +0.3V

CT to SGND............................................................-0.3V to +12V

SGND to PGND .....................................................-0.3V to +0.3V

IN, OUT_LDO Current .......................................................700mA

OUT_SW Current...............................................................350mA

Current Sink/Source (all remaining pins) ............................50mA

Continuous Power Dissipation (T

A

= +70°C)

32-Pin TQFN (derate 34.5mW/°C above +70°C).............2.7W*

Thermal Resistance

θ

JA

..............................................................................29.0°C/W

θ

JC

................................................................................1.7°C/W

Operating Temperature Range .........................-40°C to +125°C

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

Storage Temperature Range .............................-60°C to +150°C

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

*

As per JEDEC 51 Standard, Multilayer Board (PCB).

Supply Voltage Range V

Supply Current I

Shutdown Supply Current I

IN Undervoltage Lockout V

IN Undervoltage Lockout
Hysteresis

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SHDN

V

UVLO_HYST

V

≥ V

IN

IN

UVLO

IN

MAX15009

MAX15011

EN_LDO = EN_SW =
EN_PROT = SGND,
measured from
SGND

VIN falling, GATE disabled 4.10 4.27 4.45 V

+ 1.5V 5 40 V

OUT

EN_LDO = IN, EN_SW =
EN_PROT = 0V, I
= 0µA, LDO on, switch off,
protector off, measured
from SGND

EN_LDO = EN_SW = IN,
EN_PROT = 0V, LDO ON,
I

OUT_LDO

on, I

OUT_SW

protector off, measured
from SGND

EN_LDO = EN_SW =
EN_PROT = IN, LDO ON,
I

OUT_LDO

on, I

OUT_SW

protector on, measured
from SGND

EN_LDO = EN_SW = IN,
LDO ON, I
100µA, switch on, I
= 0µA, measured from
SGND

OUT_LDO

= 100µA, switch

= 0µA,

= 100µA, switch

= 0µA,

OUT_LDO

TA = -40°C to
+85°C

T

A

+125°C

=

OUT_SW

= -40°C to

67 85

290 360

360 500

268 360

16 30

40

260 mV

µA

µA

MAX15009/MAX15011

Automotive 300mA LDO Regulators with

Switched Output and Overvoltage Protector

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VIN= +14V, V

SGND

= V

PGND

= 0V, C

GATE

= 6000pF, CIN= 10µF (ESR < 1.5Ω), C

OUT_LDO

= 22µF (ceramic), C

OUT_SW

= 1µF,

V

OUT_LDO

= 5V, CT= open, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)

Dual Mode is a trademark of Maxim Integrated Products, Inc.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Thermal-Shutdown
Temperature

Thermal Hysteresis T

LDO

Output Voltage V

FB_LDO Set-Point Voltage V

Dual Mode™ FB_LDO
Threshold

FB_LDO Input Current I

LDO Output Voltage V

LDO Dropout Voltage V

LDO Output Current I

LDO Output Current Limit I

OUT_LDO Line Regulation

OUT_LDO Load Regulation

OUT_LDO Power-Supply
Rejection Ratio

OUT_LDO Startup Delay
Time

t

T

SHDN

HYST

OUT_LDO I

FB_LDO

V

FB_LDO_TH

FB_LDO

LDO_ADJ

DO

OUT_LDO

LIM_LDO

ΔV

/

OUT

ΔV

IN

ΔV

/

OUT

ΔI

OUT

PSRR

STARTUP_DELAY

I

= 1mA, FB_LDO = SGND 4.92 5.00 5.09

LOAD

= 300mA, VIN = 8V,

LOAD

FB_LDO = SGND

With respect to SGND, I
V

OUT_LDO

= 5V, adjustable output option

FB_LDO rising 0.125

FB_LDO falling 0.064

V

= 1V -100 +100 nA

FB_LDO

Adjustable output option (Note 2) 1.8 11.0 V

I

= 300mA (Note 3) 800 1500

LOAD

I

= 200mA (Note 3) 520 1000

LOAD

(Note 4) 300 mA

OUT_LDO = SGND, VIN = 6V 330 500 700 mA

6V ≤ VIN ≤ 40V, I
V

OUT_LDO

6V ≤ VIN ≤ 40V, I

LOAD

= 5V

LOAD

FB_LDO = SGND, V

6V ≤ VIN ≤ 40V, I

LOAD

FB_LDO = SGND, V

6V ≤ VIN ≤ 40V, I
V

OUT_LDO

LOAD

= 3.3V

1mA to 300mA, VIN = 8V,
FB_LDO = SGND

1mA to 300mA, VIN = 6.3V,
V

OUT_LDO

I

LOAD

V

OUT_LDO

I

OUT_LDO

10% of V

= 3.3V

= 10mA, f = 100Hz, 500mV

= 5V

= 0mA, from EN_LDO rising to

OUT_LDO

(nominal),

FB_LDO = SGND

LOAD

= 1mA,

= 1mA,

OUT_LDO

= 20mA,

OUT_LDO

= 20mA,

= 1mA,

= 3.3V

= 5V

P-P

,

+160 °C

20 °C

4.88 5.00 5.11

1.21 1.235 1.26 V

mV

0.03 0.2

0.03 0.1

mV/V

0.27 1

0.27 0.5

0.054 0.15

mV/mA

0.038 0.100

60 dB

30 µs

V

V

MAX15009/MAX15011

Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VIN= +14V, V

SGND

= V

PGND

= 0V, C

GATE

= 6000pF, CIN= 10µF (ESR < 1.5Ω), C

OUT_LDO

= 22µF (ceramic), C

OUT_SW

= 1µF,

V

OUT_LDO

= 5V, CT= open, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OUT_LDO Overvoltage
Protection Threshold

OUT_LDO Overvoltage
Protection Sink Current

ENABLE/HOLD INPUTS

EN_LDO to EN_PROT Input
Threshold Voltage

E N _LD O, E N _P ROT, E N _S W
Input Pulldown Current

HOLD Input Threshold
Voltage

HOLD Input Pullup I

RESET

RESET Voltage Threshold
HIGH

RESET Voltage Threshold
LOW

V

OUT_LDO

to RESET Delay t

CT Ramp Current I

CT Ramp Threshold V

RESET Output-Voltage Low V
RESET Open-Drain

Leakage Current

LOAD DUMP PROTECTOR (MAX15009 only)

FB_PROT Threshold
Voltage

FB_PROT Threshold
Hysteresis

FB_PROT Input Current I

Startup Response Time t

V

I

EN_PD

HOLD_PU

V

R ESET_H

V

RESET_L

RESET_FALL

I

LEAK_RESET

V

TH_PROT

V

FB_PROT

OV_TH

I

OV

V

IH

V

IL

1mA sink from OUT_LDO 105 110 %V

V

OUT_LDO

= V

OUT

EN_ is internally pulled low to SGND 1 µA

V

IH

V

IL

HOLD is internally pulled high to
OUT_LDO

RESET goes HIGH when rising
V

OUT_LDO

crosses this threshold,

FB_LDO = SGND

RESET goes HIGH when rising
V

crosses this threshold

FB_LDO

RESET goes LOW when falling
V

OUT_LDO

crosses this threshold,

FB_LDO = SGND

RESET goes LOW when falling

CT

CT_TH

OL

V

V

VCT = 0V 1.50 2 2.35 µA

VCT rising 1.190 1.235 1.270 V

I

SINK

crosses this threshold

FB_LDO

OUT_LDO

falling, 0.1V/µs 19 µs

= 1mA, output asserted 0.1 V

Output not asserted 150 nA

FB_PROT rising 1.20 1.235 1.27 V

HYST

START

V

FB_PROT

EN_PROT rising, EN_LDO = IN, to
V

GATE

= 1.4V -100 +100 nA

= 0.5V

(nominal) x 1.15 8 19 mA

2

1.4

0.6 µA

90.0 92.5 95.0 %V

90.0 92.5 95.0 %V

88 90 92 %V

88 90 92 %V

4%V

20 µs

0.7

0.4

OUT_LDO

V

V

OUT_LDO

FB_LDO

OUT_LDO

FB_LDO

TH_PROT

GATE Rise Time t

GATE

GATE rising to +8V, V

= 0V 1 ms

SOURCE

MAX15009/MAX15011

Automotive 300mA LDO Regulators with

Switched Output and Overvoltage Protector

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

(VIN= +14V, V

SGND

= V

PGND

= 0V, C

GATE

= 6000pF, CIN= 10µF (ESR < 1.5Ω), C

OUT_LDO

= 22µF (ceramic), C

OUT_SW

= 1µF,

V

OUT_LDO

= 5V, CT= open, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)

Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: 1.8V is the minimum limit for proper HOLD functionality.
Note 3: Dropout is defined as V

IN

- V

OUT_LDO

when V

OUT_LDO

is 98% of the value of V

OUT_LDO

for VIN= V

OUT_LDO

+ 1.5V.

Note 4: Maximum output current may be limited by the power dissipation of the package.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

FB_PROT to GATE Turn-Off
Propagation Delay

GATE Output High Voltage V

GATE Output Pulldown
Current

GATE Charge-Pump
Current

GATE-to-SOURCE Clamp
Voltage

SWITCH

Switch Dropout ΔV

Switch Current Limit I

Current-Limit Selector ILIM
Voltage

OC_DELAY Timeout
Threshold

OC_DELAY Timeout Pullup
Current

OC_DELAY Timeout
Pulldown Current

Minimum OC_DELAY
Timeout

EN_SW to OUT_SW
Turn-On Time

EN_SW to OUT_SW
Turn-Off Propagation Delay

I

OC_DELAY_DOWN

t

t

OV

- V

GATE

I

V

OC_DELAY

I

OC_DELAY_UP

OC_DELAY_MIN

GATEPD

I

GATE

V

CLMP

SW

SW_LIM

V

ILIM

t

OV_SW

IN

FB_PROT rising from V
250mV to V

V

SOURCE

R

GATE

V

SOURCE

R

GATE

V

GATE

TH_PROT

= VIN = 5.5V,

to IN = 1MΩ

= VIN; VIN ≥ 14V,

to IN = 1MΩ

= 5V, V

EN_PROT

GATE = SGND 45 µA

ΔVSW = V
I

OUT_SW

OUT_LDO

= 100mA, V

no external MOSFET

ILIM = OUT_LDO, VIN = 8V 170 200 240

R

= 100kΩ to SGND,

LIM

V

OUT_LDO

R

LIM

V

OUT_LDO

R

LIM

V

OC_DELAY

V

OC_DELAY

C

OC_DELAY

= 5V, VIN = 8V

= 39kΩ to SGND,

= 5V, VIN = 8V

= 100kΩ

= 0.5V rising

= 0.5V, falling

is unconnected

OUT_SW rising to +0.5V,

OUT_SW

= 1kΩ

R

EN_SW falling, V
rising to +1V, R
V

OUT_LDO

OUT_SW

= 5V

V

+

VIN +

IN

3.2

V

IN

7.0

3.5

+

VIN +

8.1

0.6 µs

VIN +

3.8

VIN +

9.5

TH_PROT

+ 250mV

-

= 0V 63 100 mA

12 16 18 V

- V

OUT_LDO

OUT_SW

,
= 5V,

36 70 mV

85 100 120

30 40 50

0.395 V

1.194 1.235 1.270 V

12.5 16.0 21.3 µA

0.75 1.00 1.40 µA

12 µs

38 µs

OUT_LDO

- V

= 1kΩ,

OUT_SW

18 µs

V

mA

MAX15009/MAX15011

Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector

6 _______________________________________________________________________________________

Typical Operating Characteristics

(VIN= V

EN_LDO

= V

EN_PROT

= V

EN_SW

= +14V, CIN= 10µF, C

OUT_LDO

= 22µF, C

OUT_SW

= 1µF, V

OUT_LDO

= +5V, FB_LDO = SGND,

T

A

= +25°C, unless otherwise specified.)

LDO GROUND CURRENT

vs. LOAD CURRENT

MAX15009 toc01

LOAD CURRENT (mA)

0 0.3 0.6 0.90.1 0.4 0.70.2 0.5 0.8 1.0

74

72

70

68

66

64

62

60

58
56

54

52

GROUND CURRENT (μA)

TA = -40°C

TA = +25°C

TA = +125°C

TA = +85°C

LDO GROUND CURRENT

vs. LOAD CURRENT

MAX15009 toc02

LOAD CURRENT (mA)

0 75 150 22525 100 17550 125 200 250 275 300

100

110

90

80

70

60

50

GROUND CURRENT (μA)

TA = -40°C

TA = +25°C

TA = +85°C

TA = +125°C

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

MAX15009 toc03

TEMPERATURE (°C)

-60 0-40 1008060 120-20 20 40 140

30

25

35

20

15

10

5

0

I

SHDN

(μA)

LDO LOAD-TRANSIENT RESPONSE

MAX15009 toc09

400μs/div

I

OUT_LDO

100mA/div

0A

V

OUT_LDO

5V, AC-COUPLED

100mV/div

LDO POWER-SUPPLY

REJECTION RATIO vs. FREQUENCY

MAX15009 toc04

FREQUENCY (Hz)

10 100k10k100 1k 1M

-10

-20

0

-30

-40

-50

-60

-70

-80

-90

LDO PSRR (dB)

I

OUT_LDO

= 10mA

VIN UVLO HYSTERESIS

vs. TEMPERATURE

MAX15009 toc05

TEMPERATURE (°C)

-50 7525-25 125500 100 150

400

350

300

250

200

150

100

UVLO HYSTERESIS (mV)

LDO LOAD REGULATION

MAX15009 toc06

I

OUT_LDO

(mA)

0 200100 300

5.10

5.08

5.06

5.04

5.02

5.00

4.98

4.96

4.94

4.92

4.90

V

OUT_LDO

(V)

LDO LOAD-TRANSIENT RESPONSE

MAX15009 toc08

2ms/div

V

OUT_LDO

5V, AC-COUPLED

20mV/div

I

OUT_LDO

100mA/div

0A

LDO OUTPUT VOLTAGE

vs. INPUT VOLTAGE

MAX15009 toc07

VIN (V)

025155352010 30 40

6

5

4

3

2

1

0

V

OUT_LDO

(V)

I

OUT_LDO

= 10mA

I

OUT_LDO

= 300mA

(PULSED)

MAX15009/MAX15011

Automotive 300mA LDO Regulators with

Switched Output and Overvoltage Protector

_______________________________________________________________________________________

7

Typical Operating Characteristics (continued)

(VIN= V

EN_LDO

= V

EN_PROT

= V

EN_SW

= +14V, CIN= 10µF, C

OUT_LDO

= 22µF, C

OUT_SW

= 1µF, V

OUT_LDO

= +5V, FB_LDO = SGND,

T

A

= +25°C, unless otherwise specified.)

STARTUP RESPONSE THROUGH V

IN

MAX15009 toc17

20ms/div

V

IN

20V/div

0V

0V

0V

0V

V

RESET

5V/div

V

OUT_LDO

5V/div

V

OUT_SW

5V/div

I

OUT_LDO

= 100mA

I

OUT_SW

= 70mA

EN_LDO = EN_SW = IN

5.10

5.05

5.00

(V)

4.95

OUT_LDO

V

4.90

4.85

4.80

10V/div

V

OUT_LDO

3.3V, AC-COUPLED
20mV/div

V

3.3V, AC-COUPLED

OUT_SW

20mV/div

V

OUT_PROT

10V/div

LDO OUTPUT VOLTAGE

vs. TEMPERATURE

I

= 100μA

OUT_LDO

I

= 100mA

OUT_LDO

-50 7525-25 125500 100 150
TEMPERATURE (°C)

LINE-TRANSIENT RESPONSE

V

IN

I

OUT_LDO

40ms/div

I

OUT_LDO

= 300mA

= 10mA

VIN = 8V

MAX15009 toc13

SWITCH LOAD-TRANSIENT RESPONSE

MAX15009 toc10

I

OUT_SW

100mA/div

V

OUT_SW

5V, AC-COUPLED

100mV/div

V

OUT_LDO

5V, AC-COUPLED

100mV/div

LDO DROPOUT VOLTAGE

1000

900

0V

0V

800

700

600

500

400

300

LDO DROPOUT VOLTAGE (mV)

200

100

0

0 200100 300

400μs/div

I

OUT_LDO

I

OUT_SW

vs. LOAD CURRENT

I

(mA)

OUT_LDO

MAX15009 toc11

= 100mA

= 100mA

0A

MAX15009 toc14

20V/div

V

OUT_LDO

3.3V, AC-COUPLED
50mV/div

V

3.3V, AC-COUPLED

OUT_SW

50mV/div

V

OUT_PROT

20V/div

SWITCH DROPOUT VOLTAGE (mV)

LINE-TRANSIENT RESPONSE

V

IN

SWITCH DROPOUT VOLTAGE

vs. LOAD CURRENT

40

35

30

25

20

15

10

5

0

0 10050

40ms/div

I

OUT_SW

(mA)

I

OUT_LDO

MAX15009 toc12

0V

0V

MAX15009 toc15

= 10mA

SWITCH DROPOUT VOLTAGE

vs. TEMPERATURE

60

I

= 10mA

OUT_LDO

50

40

I

= 100mA

30

20

SWITCH DROPOUT VOLTAGE (mV)

10

0

-45 105 13053055-20 80
TEMPERATURE (°C)

I

OUT_SW

OUT_SW

= 10mA

MAX15009 toc16

MAX15009/MAX15011

Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VIN= V

EN_LDO

= V

EN_PROT

= V

EN_SW

= +14V, CIN= 10µF, C

OUT_LDO

= 22µF, C

OUT_SW

= 1µF, V

OUT_LDO

= +5V, FB_LDO = SGND,

T

A

= +25°C, unless otherwise specified.)

PROTECTOR GATE VOLTAGE

vs. INPUT VOLTAGE (MAX15009 ONLY)

MAX15009 toc24

VIN (V)

20 2515 30 4010 3550

50

40

30

20

45

35

25

10

0

15

5

GATE VOLTAGE (V)

V

GATE

V

IN

GROUND CURRENT DISTRIBUTION

HISTOGRAM (T

A

= +125°C)

MAX15009 toc23

GROUND CURRENT (μA)

67 69 7165

6361

57

59

55

5351

90

40

30

20

10

80

70

60

50

0

NUMBER OF PARTS

STARTUP RESPONSE THROUGH EN

V

IN

V

EN_LDO

5V/div

I

= 100mA

OUT_LDO

= 70mA

I

OUT_SW

V

RESET

5V/div

V

OUT_LDO

5V/div

V

OUT_SW

5V/div

V

EN_LDO

5V/div

V

OUT_LDO

5V/div

HOLD

5V/div

RESET

5V/div

= VEN_SW

V

EN_LDO

20ms/div

LDO, EN_LDO, AND HOLD TIMING

HOLD PULLED UP
TO OUT_LDO

200ms/div

MAX15008 toc18

14V

0V

0V

V

0V

0V

MAX15009 toc21

0V

0V

0V

0V

SHUTDOWN RESPONSE THROUGH V

V

IN

I

OUT_LDO

10V/div

I

OUT_SW

EN_LDO = VEN_SW = IN

V

RESET

5V/div

OUT_LDO

5V/div

V

OUT_SW

5V/div

70

60

50

40

30

NUMBER OF PARTS

20

10

0

67

MAX15008 toc19

= 100mA

= 70mA

2ms/div

GROUND CURRENT DISTRIBUTION

HISTOGRAM (T

GROUND CURRENT (μA)

= -40°C)

A

737169

79

IN

817775

0V

0V

0V

0V

MAX15009 toc22

20V/div

V

EN_LDO

5V/div

V

5V/div

V

OUT_LDO

5V/div

V

OUT_SW

5V/div

SHUTDOWN RESPONSE THROUGH EN

V

IN

I

= 100mA

OUT_LDO

= 70mA

I

RESET

OUT_SW

EN_LDO = EN_SW

MAX15008 toc20

6V

0V

0V

0V

0V

PROTECTOR STARTUP RESPONSE

V

IN

10V/div

V

GATE

10V/div

V

OUT_PROT

10V/div

10ms/div

I

OUT_PROT

MAX15009 toc25

= 1A

0V

0V

0V