AAT1154 Ver la hoja de datos (PDF) - Analog Technology Inc
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AAT1154 Datasheet PDF : 16 Pages
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SwitchRegTM
PRODUCT DATASHEET
AAT1154
1MHz 3A Step-Down DC/DC Converter
Electrical Characteristics
VIN = VCC = VP = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol
VIN
VOUT
VUVLO
VUVLO(HYS)
IQ
ISHDN
ILIM
RDS(ON)H
η
ΔVLOADREG
ΔVLINEREG/
ΔVIN
FOSC
VEN(L)
VEN(H)
TSD
THYS
Description
Conditions
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
VIN = VOUT + 0.2V to 5.5V, IOUT = 0A to 3A
VIN Rising
VIN Falling
No Load, VFB = 0V
VEN = 0V, VIN = 5.5V
TA = 25°C
TA = 25°C
IOUT = 1A
ILOAD = 0A to 3A
Line Regulation
VIN = 2.7V to 5.5V
Oscillator Frequency
Enable Threshold Low
Enable Threshold High
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
TA = 25°C
Min
2.7
-5.0
1.2
4.4
Typ
250
630
60
92
±2.6
Max
5.5
5.0
2.5
1000
1.0
Units
V
%
V
mV
μA
μA
A
mΩ
%
%
0.75
%/V
1
0.6
1.4
140
15
MHz
V
V
°C
°C
4
www.analogictech.com
1154.2007.11.1.7
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