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參數(shù)資料
| 型號： | FAN5230QSC |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | System Electronics Regulator for Mobile PCs |
| 中文描述： | DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | QSOP-24 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 254K |
| 代理商： | FAN5230QSC |
FAN5230
2
REV. 2.8.5 10/17/01
Pin Assignments
Pin Description
Pin Name
VIN
3.3V-ALWAYS
Pin Number Pin Function Description
1
Input power.
2
3.3V Always on linear regulator.
50mA total. This pin should be decoupled to ground with a 10μF capacitor.
3
Charge Pump 3.3V.
High side Gate drive voltage for 3.3V. This pin is to be
connected to SW3.3 through a 100nF cap. and to 5V-ALWAYS through a diode
4
High-side gate driver for 3.3V.
Connect this pin directly to the gate of an
N-channel MOSFET. The trace from this pin to the MOSFET gate should be < 1".
5
High side FET Source and Low Side FET Drain Switching Node.
node for 3.3V.
6
5V Always on linear regulator output.
and 6 must not exceed 50mA total. This pin should be decoupled to ground with
a 10μF capacitor.
Load current on pins 2 and 6 must not exceed
CPUMP3.3
HSD3.3
SW3.3
Switching
5V-ALWAYS
The sum of the load currents on pins 2
1
2
3
4
5
6
7
8
9
10
11
12
Top View
24
23
22
21
20
19
18
17
16
15
14
13
VIN
3.3V-ALWAYS
CPUMP3.3
HSD3.3
5V-ALWAYS
LSD3.3
GND3.3
SW3.3
ISEN3.3
VFB3.3
SDN3.3
PGOOD
CPUMP5
HSD5
SW5
ISEN5
LSD5
GND5
VFB5
SDN5
SW12
VFB12
SGND
SDWN
Typical Application
1 VIN
2 3.3 ALW
3 CPUMP3.3
4 HSD3.3
5 SW3.3
6 5V-ALW
7 LSD3.3
8 GND3.3
9 ISEN3.3
10 VFB3.3
11 SDN3.3
12 PGOOD
CPUMP5 24
HSD5 23
SW5 22
ISEN5 21
LSD5 20
GND5 19
VFB5 18
SDN5 17
SW12 16
VFB12 15
SGND 14
SDWN 13
FAN5230
Vin = 5.4-24V
12V @ 120mA
+
3.3V-ALWAYS@50mA
5V @ 5A
SDN5
SDWN
PGOOD
3.3V @ 5A
+
SDN3.3
+
5V-ALWAYS@ 50mA
5V-ALWAYS
5V-ALWAYS
VFB12
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| FAN5231QSC | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 QSOP-28 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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