MAX8704 Просмотр технического описания (PDF) - Maxim Integrated

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MAX8704

High-Current, Low-Voltage Linear Regulator with Power-Limited, External MOSFET

Maxim Integrated 

High-Current, Low-Voltage Linear Regulator

with Power-Limited, External MOSFET

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 2.5V, VCC = 5.0V, PLIM = FB = GND, CSP = CSN, SS/EN floating, TA = 0°C to +85°C, unless otherwise noted. Typical values

are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

PLIM Output Current

PLIM Output Current Offset

CSP Input Current

SOFT-START AND SHUTDOWN

Soft-Start Charge Current

SS/EN Full Current Threshold

SS/EN Enable Threshold

VCSP - VCSN = 30mV, VIN = 3.5V,

VCSN = 0.5V

CSP = CSN, VIN = 1.0V, VCSN = 0.5V

VCSN = 1.50V, VCSP = 1.55V

ISS

VSS/EN = 1.5V

Rising edge

14

18

21

µA

0.5

2

µA

-1

+1

µA

4

5

6

µA

2

V

0.4

0.5

0.6

V

SS/EN Discharge Current

ISS/EN

VSS/EN = 1.5V, thermal fault, bias fault

condition, or UVLO

10

20

µA

Discharge-Mode On-Resistance

INPUTS AND OUTPUTS

RCSN

10

Ω

PGOOD Trip Threshold

With respect to error-comparator threshold,

2% hysteresis

-10

-8

-6

%

PGOOD Startup Delay

PGOOD Output Low Voltage

PGOOD Leakage Current

IPGOOD

ISINK = 4mA

VFB = 1.0V (PGOOD high impedance),

PGOOD forced to 5V

1

3

5

ms

0.3

V

-1

+1

µA

ELECTRICAL CHARACTERISTICS

(VIN = 2.5V, VCC = 5.0V, PLIM = FB = GND, CSP = CSN, SS/EN floating, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

Input Voltage Range

Preset Output Voltage

(Fixed)

SYMBOL

VIN

VCC

VOUT

FB = VCC

FB = GND

CONDITIONS

MIN

1.0

4.5

1.455

1.158

MAX

5.5

5.5

1.545

1.242

UNITS

V

V

Feedback Voltage Accuracy

(Adjustable)

VFB

FB = CSN

485

515

mV

DRV Output Voltage Swing

VDRV

Output high

Output low

VCC -

1.1

V

1.1

Quiescent Supply Current (VCC)

ICC

FB forced above the regulation point,

VCSN = 1.6V

3

mA

Quiescent Supply Current (VIN)

Shutdown Supply Current (VCC)

Shutdown Supply Current (VIN)

IIN

FB forced above the regulation point,

VCSN = 1.6V

SS/EN = GND

SS/EN = GND

10

µA

70

µA

10

µA

_______________________________________________________________________________________ 3

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