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AAT1171 Datasheet(PDF) 4 Page - Advanced Analogic Technologies

Part No. AAT1171
Description  600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch
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Maker  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
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AAT1171 Datasheet(HTML) 4 Page - Advanced Analogic Technologies

 
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Electrical Characteristics1
TA = -40°C to +85°C, unless otherwise noted. VIN = VCC = 3.6V; typical values are TA = 25°C.
Symbol
Description
Conditions
Min
Typ
Max Units
VIN
Input Voltage
2.7
5.5
V
VUVLO
UVLO Threshold
VIN Rising
2.6
V
UVLO Hysteresis
200
mV
VOUT
VOUT Programmable Range
0.6
3.6
V
VDACIN
Input Voltage Range from DAC
0.2
1.2
V
IQ
Quiescent Current
No Load, Light Load
45
70
µA
No Load, PWM, VCC Bias Current
420
ISHDN
Shutdown Current
EN = AGND = PGND
1.0
µA
ILIM
P-Channel Current Limit
TA = 25°C
1.2
1.6
A
RDS(ON)H
High Side Switch On Resistance
230
m
Ω
RDS(ON)L
Low Side Switch On Resistance
230
m
Ω
RDS(ON)BP
Bypass Switch Resistance
VDAC = 1.3V or BYPASS = VIN
85
m
Ω
ILXLEAK
LX Leakage Current
VCC = 5.5V, VLX = 0 to VCC
1µA
ΔVOUT/VOUT Load Regulation
ILOAD = 0 to 500mA
0.5
%
ΔVOUT/
VOUT*ΔVIN
Line Regulation
0.2
%/V
ROUT
Feedback Impedance
170
k
Ω
VOUT
Output Voltage Accuracy
VDAC = 0.6V, ILOAD = 0
1.746
1.8
1.854
V
FOSC
Oscillator Frequency
2.0
MHz
TSD
Over-Temperature Shutdown
140
°C
Threshold
THYS
Over-Temperature Shutdown
15
°C
Hysteresis
ILL
Light Load Load Current Threshold
100
mA
tVOUTS
Output Voltage Settling Time
VOUT = 0.6V to VOUT(MAX),
30
µs
MODE/SYNC = VIN
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
4
1171.2006.06.1.0
1. The AAT1171 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.


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