AAT1154(2003) Ver la hoja de datos (PDF) - Analog Technology Inc

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AAT1154
(Rev.:2003)

1MHz 3A Buck DC/DC Converter

Analog Technology Inc 

AAT1154

1MHz 3A Buck DC/DC Converter

Electrical Characteristics (VIN = VCC = VP = 5V, TA= -40 to 85°C unless otherwise noted. Typical

values are at TA = 25°C)

Symbol

Description

Conditions

VIN

VOUT

VUVLO

VUVLO(HYS)

IQ

ISHDN

ILIM

RDS(ON)L

η

∆VOUT (VOUT*∆VIN)

∆VOUT/VOUT

FOSC

VEN(L)

VEN(H)

TSD

THYS

Input Voltage Range

Output Voltage Tolerance

Under Voltage Lockout

Under Voltage Lockout Hysteresis

Quiescent Supply Current

Shutdown Current

Current Limit

High Side Switch On Resistance

Efficiency

Load Regulation

Line Regulation

Oscillator Frequency

Enable Threshold Low

Enable Threshold High

Over Temp Shutdown Threshold

Over Temp Shutdown Hysteresis

VIN = VOUT + 0.2 to 5.5V,

IOUT = 0 to 3A

VIN Rising

VIN Falling

No Load, VFB= 0 V

VEN = 0 V, VIN= 5.5V

TA = 25°C

TA = 25°C

IOUT = 1.0 A

ILOAD = 0 - 3A

VIN= 2.7 to 5.5V

TA = 25°C

Min Typ Max Units

2.7

5.5 V

-5.0

5.0 %

2.5 V

1.2

V

250

mV

630 1000 µA

1.0 µA

4.4

A

60

mΩ

92

±2.6

%

0.75

%/V

1

MHz

0.6 V

1.4

V

140

°C

15

°C

4

1154.2003.08.0.91

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