AAT1153 查看數據表（PDF） - Analog Technology Inc
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AAT1153 Datasheet PDF : 20 Pages
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PRODUCT DATASHEET
AAT1153
2A Step-Down Converter
Electrical Characteristics1
VIN = 3.6V, TA = -40°C to +85°C unless otherwise noted; typical values are TA = 25°C.
Symbol
VIN
VOUT
IQ
IFB
VFB
ΔVLINEREG/
ΔVIN
ΔVLOADREG/
ΔIOUT
VFB
FOSC
TS
TSD
THYS
ILIM
RDS(ON)
VEN(L)
VEN(H)
IEN
Description
Input Voltage Range2
Output Voltage Range
Input DC Supply Current
Feedback Input Bias Current
Regulated Feedback Voltage3
Line Regulation
Load Regulation
Output Voltage Accuracy
Oscillator Frequency
Startup Time
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Peak Switch Current
P-CH MOSFET
N-CH MOSFET
Enable Threshold Low
Enable Threshold High
Input Low Current
Conditions
Active Mode: VFB = 0.5V
Shutdown Mode: VEN = 0V, VAIN = 5.5V
VFB = 0.65V
TA = 25°C
0°C ≤ TA ≤ 85°C
-40°C ≤ TA ≤ 85°C
VIN = 2.5V to 5.5V, IOUT = 10mA
IOUT = 10mA to 2000mA
VIN = 2.5 to 5.5V, IOUT = 10 to 2000mA
VFB = 0.6V
From Enable to Output Regulation
VIN = 3.6V
VIN = 3.6V
VIN = VEN = 5.5V
Min
2.5
0.6
0.5880
0.5865
0.5850
Typ
300
0.1
0.6000
0.6000
0.6000
Max
5.5
VIN
500
1
30
0.6120
0.6135
0.6150
Units
V
V
μA
μA
nA
V
0.10 0.20 %/V
0.20
%/A
-3
+3
% VOUT
0.96
1.2
1.44 MHz
1.3
ms
170
°C
10
°C
2.5
3.5
A
135
200
mΩ
95
150
0.3
V
1.5
V
-1.0
1.0
μA
1. The AAT1153 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2. VIN should be not less than VOUT + VDROPOUT, where VDROPOUT = IOUT x (RDS(ON)PMOS + ESRINDUCTOR), typically VDROPOUT = 0.3V.
3. The regulated feedback voltage is tested in an internal test mode that connects VFB to the output of the error amplifier.
4
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1153.2007.11.1.1
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