MAX8737 datasheet(2/15 Pages) MAXIM

Part #	MAX8737

Description	Dual, Low-Voltage Linear Regulator Controllers with External MOSFETs

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual, Low-Voltage Linear Regulator Controllers

with External MOSFETs

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

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

OUT1, OUT2 to GND................................................-0.3V to +6V

REFIN1, REFIN2, PGOOD1, PGOOD2, EN1,

EN2 to GND..........................................................-0.3V to +6V

DRV1, DRV2, CS1, CS2 to GND.................-0.3V to (VCC + 0.3V)

Continuous Power Dissipation (TA = +70°C)

16-Pin 4mm x 4mm Thin QFN (derated 25mW/°C

above +70°C).............................................................2000mW

Operating Temperature Range

MAX8737ETE ...................................................-40°C to +85°C

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

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

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

ELECTRICAL CHARACTERISTICS

(VCC = 5V, EN_ = CS_ = VCC, VREFIN = 1.0V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VCC

4.75

5.50

V

VCC Undervoltage Lockout

Threshold

Rising edge, 200mV hysteresis (typ)

4.1

4.35

4.6

V

VCC Quiescent Supply Current

ICC

EN1 = EN2 = VCC

0.5

1

mA

VCC Shutdown Supply Current

EN1 = EN2 = GND

0.1

5

µA

REFIN to OUT Offset Voltage

VOUT_-5

+5

mV

OUT_ Input Bias Current

IOUT_-1

+1

µA

DRIVERS

Output high; VOUT_ = VREFIN_ - 25mV,

ILOAD = 1mA

VCC -

0.3

VCC -

0.05

DRV_ Output Voltage Swing

(Note 1)

Output low; VOUT_ = VREFIN_ + 25mV,

ILOAD = 1mA

0.03

0.3

V

DRV_ Maximum Sourcing Current

VOUT_ = VREFIN_ - 25mV; VDRV = 3V

6

14

mA

DRV_ Maximum Sinking Current

VOUT_ = VREFIN_ + 25mV; VDRV = 3V

6

14

mA

OUT_ to DRV_ Transconductance

(Large Signal)

GMDRV

0.8

S

DRV_ Power-Supply Rejection

Ratio

10Hz < f < 10kHz, IDRV = 1mA, CDRV =

10nF

-80

dB

DRV_ Soft-Start Charging Current

ISOFT

40

170

400

µA

REFERENCE INPUT

REFIN_ Voltage Range

VREFIN_

VCC = 4.75V to 5.5V

0.5

2.5

V

REFIN_ Input Bias Current

IREFIN_VREFIN_ = 0 to 2.5V

-100

-10

+100

nA

FAULT PROTECTION

Thermal Shutdown Threshold

TSHDN

Hysteresis = 20°C

+125

°C

TA = 0°C to +85°C

7

10

13

Current-Limit Threshold

VILIM

VCS_ - VOUT_

TA = +85°C

7.5

10

12.5

mV

CS_ Input Current

-1

+1

µA

Linear Regulator UVP Threshold

(Slow)

UVP(SLOW) With respect to VREFIN; CS_ = VCC

72

80

88

%

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