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參數(shù)資料
| 型號(hào)： | SI9167 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | High-Frequency, High-Efficiency Buck Converter Design For Multi-Cell Battery Configured Systems Using Si9167 |
| 中文描述： | 高頻率，高效率降壓轉(zhuǎn)換器設(shè)計(jì)，多配置的電池系統(tǒng)使用Si9167 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 99K |
| 代理商： | SI9167 |
AN727
Vishay Siliconix
Document Number: 70959
07-Jul-99
www.vishay.com FaxBack 408-970-5600
1
High-Frequency, High-Efficiency Buck Converter Design For
Multi-Cell Battery Configured Systems Using Si9167
Nitin Kalje
The Si9167 is a high-frequency synchronous dc-to-dc
switching buck regulator, with an operating range suitable for
two-cell Li+ battery-powered applications. Capable of
operation up to 2 MHz, the Si9167 can be used to supply
power amplifiers and to power up baseband circuits in satellite
phones. Its high operating frequency reduces the size of
inductor and capacitor components, while its low
on-resistance internal driver ensures maximum power
conversion efficiency. Additional features include an
integrated input undervoltage lockout, power on reset,
integrated soft start, light load pulse skipping mode selection,
synchronization, clock output for master-slave configuration of
multiple regulators, uncommitted power-good comparator,
and over temperature protection. An output power in excess of
2 W at 3.6 V
O
is possible in 0.3 square inches.
FIGURE 1.
Typical Application Circuit—Buck
1
+V
IN
5 - 10 V
2
PGND
1
2
3
4
5
6
7
8
9
10
SD
PWM/PSM
V
IN
V
IN
POK
SYNC
CLK
GND
V
REF
FB
20
19
18
17
16
15
14
13
12
11
COIL
COIL
PGND
COIL
PGND
POKIN
V
O
V
DD
R
OSC
COMP
C1
10 F
16 V
C1
0.1 F
R9*
51 k
* Optional
C3
0.1 F
STAR GND CON
R3
8.2 k
C5
1000 pF
C4
56 pF
D1
R2
75 k
R1*
51
C6
0.1 F
L1
4.7 H
IHLP2525
R4
200
C7
330 pF
R5
22 k
R6
12.4 k
C1
10 F
16 V
C9
0.1 F
M
R8
64 k
R7
105 k
7
V
OUT
8
PGND
3.6 V @ 600 mA
1.3 V
Si9167
ENABLE/DISABLE
PWM/PSM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9167BQ-T1 | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| SI9167BQ-T1-E3 | 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 600-Ma Sync Buck Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| SI9168 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Synchronous Buck or Boost Controller for 2-Cell Li+ Battery Operated Portable Communication Devices |
| SI9168BQ-T1 | 功能描述:DC/DC 開(kāi)關(guān)控制器 Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| SI9168BQ-T1-E3 | 功能描述:DC/DC 開(kāi)關(guān)控制器 Sync Buck/Boost Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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