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參數(shù)資料
| 型號： | AAT1171IWP-1-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch |
| 中文描述： | 600毫安電壓調(diào)節(jié)射頻功率放大器的旁路開關(guān)降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/22頁 |
| 文件大?。?/td> | 797K |
| 代理商： | AAT1171IWP-1-T1 |
Electrical Characteristics
1
T
A
= -40°C to +85°C, unless otherwise noted. V
IN
= V
CC
= 3.6V; typical values are T
A
= 25°C.
Symbol
Description
Conditions
Min
Typ
Max
Units
V
IN
Input Voltage
UVLO Threshold
UVLO Hysteresis
V
OUT
Programmable Range
Input Voltage Range from DAC
2.7
5.5
V
V
V
UVLO
V
IN
Rising
2.6
200
mV
V
V
V
OUT
V
DACIN
0.6
0.2
3.6
1.2
70
I
Q
Quiescent Current
No Load, Light Load
No Load, PWM, V
CC
Bias Current
EN = AGND = PGND
T
A
= 25°C
45
420
μA
I
SHDN
I
LIM
R
DS(ON)H
R
DS(ON)L
R
DS(ON)BP
I
LXLEAK
Δ
V
OUT
/V
OUT
Δ
V
OUT
/
V
OUT
*
Δ
V
IN
R
OUT
V
OUT
F
OSC
Shutdown Current
P-Channel Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Bypass Switch Resistance
LX Leakage Current
Load Regulation
1.0
μA
A
m
Ω
m
Ω
m
Ω
μA
%
1.2
1.6
230
230
85
V
DAC
= 1.3V or BYPASS = VIN
V
CC
= 5.5V, V
LX
= 0 to V
CC
I
LOAD
= 0 to 500mA
1
0.5
Line Regulation
0.2
%/V
Feedback Impedance
Output Voltage Accuracy
Oscillator Frequency
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Light Load Load Current Threshold
170
1.8
2.0
k
Ω
V
MHz
V
DAC
= 0.6V, I
LOAD
= 0
1.746
1.854
T
SD
140
°C
T
HYS
15
°C
I
LL
100
mA
t
VOUTS
Output Voltage Settling Time
V
OUT
= 0.6V to V
OUT(MAX)
,
MODE/SYNC = V
IN
30
μs
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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