AAT1112 View Datasheet(PDF) - Analog Technology Inc
Part Name
Description
MFG CO.
'AAT1112' PDF : 20 Pages View PDF
AAT1112
1.5A, 1.4MHz 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
VUVLO
Description
Input Voltage
Output Voltage Range
UVLO Threshold
VOUT
IQ
ISHDN
ILIM
RDS(ON)H
RDS(ON)L
ILXLEAK
ILXLK, R
ΔVLOADREG
ΔVLINEREG/ΔVIN
VFB
IFB
FOSC
Output Voltage Tolerance
Quiescent Current
Shutdown Current
Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
LX Leakage Current
LX Reverse Leakage Current
Load Regulation
Line Regulation
Feedback Threshold Voltage
Accuracy (Adjustable Version)
FB Leakage Current
Internal Oscillator Frequency
Synchronous Clock
TS
TSD
THYS
EN
VIL
VIH
IEN
MODE/SYNC
VMODE/SYNC(L)
VMODE/SYNC(H)
IMODE/SYNC
Start-Up Time
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Enable Threshold Low
Enable Threshold High
Enable Leakage Current
Enable Threshold Low
Enable Threshold High
Enable Leakage Current
Conditions
VIN Rising
Hysteresis
VIN Falling
IOUT = 0A to 1.5A,
VIN = 2.4V to 5.5V
No Load
VEN = GND
VIN = 5.5V, VLX = 0 to VIN
VIN Unconnected, VLX = 5.5V,
VEN = GND
ILOAD = 0A to 1.5A
VIN = 2.4V to 5.5V
No Load, TA = 25°C
VOUT = 1.0V
From Enable to Output
Regulation
Min Typ Max Units
2.4
5.5 V
0.6
VIN
V
2.4 V
250
mV
1.8
V
-3.0
3.0 %
42 90 µA
1.0 µA
1.8
A
0.120
Ω
0.085
Ω
1.0 µA
1.0 µA
0.5
%
0.2
%/V
0.591 0.60 0.609 V
0.2 µA
1.12
0.60
1.4
1.68
3.0
MHz
150
µs
140
°C
15
°C
VIN = VEN = 5.5V
VIN = VEN = 5.5V
0.6 V
1.4
V
-1.0
1.0 µA
0.6 V
1.4
V
-1.0
1.0 µA
1. The AAT1112 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
1112.2007.01.1.1
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