PRODUCT DATASHEET
AAT2783
SystemPowerTM
Triple Output PMIC: Dual Buck with Low-VIN LDO
Electrical Characteristics1
VP1 = VP2 = VIN = 3.3V; VIN3=1.7V, TA = -40°C to 85°C, unless noted otherwise. Typical values are at TA = 25°C.
Symbol
Description
Conditions
Min
Typ
Max
Units
General
VIN
Input Voltage
2.7
5.5
2.7
V
V
VP1 Rising
VUVLO
UVLO Threshold
VP1 Hysteresis
VP1 Falling
140
mV
V
2.1
IQ
ISHDN
Quiescent Current
Shutdown Current
No load; EN1 = EN2 =EN3 = VIN
EN1 = EN2 =EN3 = GND
240
1.0
μA
μA
Over Temperature Shutdown
Threshold
Over Temperature Shutdown
Hysteresis
TSD
130
20
°C
°C
THYS
VIL
VIH
IEN
Enable Threshold Low
Enable Threshold High
Enable Input Current
For EN1, EN2, and EN3
0.6
1.0
V
V
For EN1, EN2, and EN3
1.4
VIN = VP1 = VP2 = VEN1 = VEN2 = VEN3 = 5.5V
-1.0
ꢀA
Channel 1: 1000mA Step-down (Buck) Converter
VP1
VOUT1
VOUT1(TOL)
VFB1
ΔVLOADREG1
ΔVLINEREG1
IQ1
Input Voltage
2.7
0.6
-3.0
0.591
5.5
VP1
3.0
V
V
%
V
%
%
μA
A
mΩ
mΩ
MHz
μs
Output Voltage Range
Output Voltage Tolerance
Feedback Pin Voltage
Load Regulation
Line Regulation
Quiescent Current
P-Channel Current Limit
High Side Switch On-Resistance
Low Side Switch On-Resistance
Oscillator Frequency
Start-Up Time
IOUT1 = 0 to 1000mA; VP1 = 2.7 to 5.5V
0.6
0.2
0.3
65
1.7
250
190
1.3
200
0.609
IOUT1 = 0 to 1000mA
VP1 = 2.7 to 5.5V
No load; EN1 = VIN; EN2 = EN3 = GND
ILIM1
RDS(ON)H1
RDS(ON)L1
FOSC1
TS1
From Enable to Output Regulation
1. The AAT2783 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.
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2783.2008.03.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
