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SD3118-2R2 датащи(PDF) 4 Page - Skyworks Solutions Inc.

номер детали SD3118-2R2
подробное описание детали  600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch
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производитель  SKYWORKS [Skyworks Solutions Inc.]
домашняя страница  http://www.skyworksinc.com
Logo SKYWORKS - Skyworks Solutions Inc.

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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201999B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
DATA SHEET
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, MODE/SYNC = VIN or
GND
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
RDS(ON)L
Low Side Switch On Resistance
230
RDS(ON)BP
Bypass Switch Resistance
VDAC = 1.3V or BYPASS = VIN
85
ILXLEAK
LX Leakage Current
VCC = 5.5V, VLX = 0 to VCC, EN = 0V
1
μA
∆VOUT/
VOUT
Load Regulation
ILOAD = 0 to 500mA
0.5
%
∆VOUT/
VOUT/∆VIN
Line Regulation
0.2
%/V
ROUT
Feedback Impedance
170
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 Threshold
140
°C
THYS
Over-Temperature Shutdown Hysteresis
15
°C
ILL
Light Load Load Current Threshold
100
mA
tVOUTS
Output Voltage Settling Time
VOUT = 0.6V to VOUT(MAX), MODE/SYNC = VIN
30
μs
PWM/Light Load/EN
VEN(L)
Enable Threshold Low
0.6
V
VEN(H)
Enable Threshold High
1.4
V
IEN
Input Low Current
VCC = 5.5V
-1.0
1.0
μA
tEN
Turn-On Enable Response Time
AAT1171-1: EN = Low to High, MODE/SYNC
= High, VDAC = 1.2V
150
μs
AAT1171-4/AAT1171-5: EN = Low to High,
MODE/SYNC = High, VDAC = 1.2V
50
MODE/SYNC
FMODE/SYNC
Synchronization Frequency
Sync to 19.8MHz2
19.8
MHz
VMODE/
SYNC(H)
MODE/SYNC High Level Threshold
VIN-
0.4
V
VMODE/
SYNC(L)
MODE/SYNC Low Level Threshold
0.4
V
IMODE/SYNC
MODE/SYNC Low Current
VSYNC = GND or VCC
-1.0
1.0
μA
DAC Input
Gain
Output Voltage/DAC Voltage3
3
V/V
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 correla-
tion with statistical process controls.
2. Please contact Sales for other synchronization frequencies.
3. Please contact Sales for other output voltage/DAC voltage gains.


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