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| AAT2782_12 Datasheet, PDF (5/22 Pages) Skyworks Solutions Inc. – Triple-Output PMIC Dual Buck with Low-VIN LDO | |||
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DATA SHEET
AAT2782
Triple-Output PMIC: Dual Buck with Low-VIN LDO
Electrical Characteristics1
VP1 = VP2 = VIN = VIN3 = 3.3V; VIN3 = 1.8V, TA = -40°C to 85°C, unless noted otherwise. Typical values are at TA = 25°C.
Symbol Description
Conditions
Channel 2: 600mA Step-down (Buck) Converter
VP2
Input Voltage
VOUT2
Output Voltage Range
VOUT2(TOL) Output Voltage Tolerance
IOUT2= 0 to 600mA; VP1 = 2.7 to 5.5V
VFB2
Feedback Pin Voltage
ÎVLOADREG2 Load Regulation
IOUT2 = 0 to 600mA
ÎVLINEREG2 Line Regulation
VP2 = 2.7 to 5.5V
IQ2
Quiescent Current
No Load; EN2 = VIN; EN1 = EN3 = GND
ILIM2
P-Channel Current Limit
RDS(ON)H2 High Side Switch On-Resistance
RDS(ON)L2 Low Side Switch On-Resistance
FOSC2
Oscillator Frequency
TS2
Start-Up Time
From Enable to Output Regulation
Channel 3: 400mA Low Dropout (LDO) Converter
VIN3
VDO3
VOUT3
IOUT3
ISC
IQ
TS
PSRR
eN
Input Voltage
Dropout Voltage
LDO Output Voltage Tolerance
Max Output Current
Short-Circuit Current
Quiescent Current
Start-Up Time
Power Supply Rejection Ratio
Output Noise
IOUT3 = 150mA; VOUT3 > 1.20V
IOUT3 = 400mA; VOUT3 > 1.20V
VIN3 = VOUT3 + VDO3 to 5.5V; IOUT3 = 0mA to 400mA
VOUT3 = 1.2V
VOUT3 < 0.4V
No Load; EN1 = EN2 = GND; EN3 = VIN
From Enable to Output Regulation
10Hz, IOUT3 = 10mA
3kHz, IOUT3 = 10mA
30kHz, IOUT3 = 10mA
300kHz, IOUT3 = 10mA
BW = 100Hz to 300kHz, CBYP = 10nF, IOUT3 = 10mA
Min Typ Max
2.7
5.5
0.6
VP2
-3.0
3.0
0.591 0.6 0.609
0.5
0.3
75
1.7
250
190
1.3
200
1.7
1.164
400
140
300
1.200
1.1
85
200
85
80
60
55
65
VIN
1.236
Units
V
V
%
V
%
%
μA
A
mΩ
mΩ
MHz
μs
V
mV
V
mA
A
μA
μs
dB
dB
dB
dB
μVRMS
1. The AAT2782 is guaranteed to meet performance specifications over the â40°C to +85°C operating temperature range and is assured by design, characterization and correla-
tion with statistical process controls.
Skyworks Solutions, Inc. ⢠Phone [781] 376-3000 ⢠Fax [781] 376-3100 ⢠sales@skyworksinc.com ⢠www.skyworksinc.com
202038A ⢠Skyworks Proprietary Information ⢠Products and Product Information are Subject to Change Without Notice. ⢠June 8, 2012
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