- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381232 > AAT1171 (Advanced Analog Technology,lnc.) 600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch PDF資料下載
參數(shù)資料
| 型號： | AAT1171 |
| 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)： | 19/22頁 |
| 文件大?。?/td> | 797K |
| 代理商： | AAT1171 |
PA Step-Down Converter Design Example
Specifications
V
O(BUCK)
0.6V to 3.4V with R
L
=10
Ω
V
IN
2.7V to 4.2V (3.6V nominal)
F
S
2.0MHz
T
AMB
85°C
Output Inductor
L1 = 2.2μH
For Copper Electronics SD3112, 2.2μH, DCR = 140m
Ω
.
The maximum inductor ripple current occurs at 50% duty cycle at the maximum input voltage.
Output Capacitor
Specify that V
DROOP
= 0.2V for a 600mA load pulse.
1
2
3
1
3.4V · (4.2V - 3.4V)
4.7μH · 2.0MHz · 4.2V
2
3
RMS
I
L1 · F
S
· V
IN(MAX)
= ·
·
3 ·
Δ
I
LOAD
V
DROOP
· F
S
3 · 0.6A
0.2V · 2.0MHz
C
OUT
=
=
= 4.5μF
· = 69mArms
·
(V
O
) · (V
IN(MAX)
- V
O
)
=
P
ESR
= ESR · I
RMS2
= 5m
Ω
· (69mA)
2
= 24μW
I
PKL1
= I
O
+
Δ
I
L1(MAX)
= 0.6A + 0.118A = 0.718A
2
P
L1
= I
O
2
DCR = 0.6A
2
140m
Ω
= 50mW
V
V
2.1
V
2.1V
Δ
I
L1(MAX)
=
1 - =
1 - = 239mA
L
F
S
V
IN
2.2μH
2.0MHz
4.2V
AAT1171
600mA Voltage-Scaling Step-Down Converter
for RF Power Amplifiers with Bypass Switch
1171.2006.06.1.0
19
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT1201 | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL-OUTPUT POWER MANAGEMENT |
| AAT1201-S | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL-OUTPUT POWER MANAGEMENT |
| AAT1201-S-T | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL-OUTPUT POWER MANAGEMENT |
| AAT1202 | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL -OUTPUT POWER MANAGEMENT |
| AAT1203 | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH V-AUX SWITCH |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1171IUP-1-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1171IWP-1-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch |
| AAT1171IWP-4-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1171IWP-5-T1 | 制造商:SKYWORKS 制造商全稱:SKYWORKS 功能描述:600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch |
| AAT1184 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Voltage Step-Down Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。