AAT1142IWP-1.8-T1 View Datasheet(PDF) - Analog Technology Inc
Part Name
Description
MFG CO.
'AAT1142IWP-1.8-T1' PDF : 22 Pages View PDF
AAT1142
800mA Voltage-Scaling Step-Down Converter
Electrical Characteristics1
L = 2.2µH, CIN = COUT = 10µF, VIN = 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are
at TA = 25°C.
Symbol Description
Step-Down Converter
VIN
Input Voltage
VUVLO
UVLO Threshold
VOUT
VOUT
VSLEW
IQ
ISHDN
ILIM
RDS(ON)H
RDS(ON)L
ILXLEAK
ΔVOUT/
VOUT*ΔVIN
ROUT
TS
FOSC
FSYNC
TSD
THYS
Output Voltage Tolerance
VOUT Programmable Range
Output Voltage Programming
Slew Rate
Quiescent Current
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
LX Leakage Current
Line Regulation
Output Impedance
Start-Up Time
Oscillator Frequency
SYNC Frequency Range
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Conditions
VIN Rising
Hysteresis
VIN Falling
IOUT = 0mA to 800mA,
VIN = 2.7V to 5.5V
COUT = 10µF
No Load
EN/SET = AGND = PGND
VIN = 5.5V, VLX = 0V to VIN
VIN = 2.7V to 5.5V
From Enable to Output Regulation
Min
2.7
2.0
-3.0
0.6
250
1.0
Typ
250
10
35
1.0
0.29
0.24
0.2
100
2.2
140
15
Max Units
5.5 V
2.7 V
mV
V
3.0 %
2.0 V
mV/µs
70 µA
1.0 µA
A
Ω
Ω
1
µA
%/V
kΩ
µs
MHz
3.0 MHz
°C
°C
1. The AAT1142 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
by design, characterization, and correlation with statistical process controls.
4
1142.2006.07.1.0
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