- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374714 > SC1402 (Semtech Corporation) Multi-Output, Low-Noise Power Supply Controller for Notebook Computers PDF資料下載
參數(shù)資料
| 型號： | SC1402 |
| 廠商： | Semtech Corporation |
| 英文描述： | Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
| 中文描述： | 多輸出，低噪聲電源控制器，用于筆記本電腦 |
| 文件頁數(shù)： | 7/18頁 |
| 文件大?。?/td> | 270K |
| 代理商： | SC1402 |
SC1402
2000 SEMTECH CORP.
652 MITCHELL ROAD
NEWBURY PARK CA 91320
Multi-Output, Low-Noise Power Supply
Controller for Notebook Computers
December 15, 2000
7
PIN DESCRIPTION
Pin # Pin Name
Pin Function
1
CSH3
Current Sense Input for the 3.3V SMPS. Current limit level is 100mV referred to CSL3.
2
CSL3
Current Sense Input. Also serves as the feedback input in fixed output mode.
3
FB3
Feedback Input for the 3.3V SMPS; Connect FB3 to a resistor divider for adjustable output mode and
FB3 is regulated to REF (approx. 2.5V). FB3 selects the 3.3V fixed output voltage setting when tied to
GND.
4
12 OUT
12V, 120mA Linear Regulator Output. Input supply comes from V
DD
. Bypass 12 OUT to GND with 1μF
minimum capacitor.
5
VDD
Supply Voltage Input for the 12 OUT Linear Regulator. Also connects to a 18V overvoltage shunt
regulator clamp.
6
SYNC
Oscillator Synchronization and Frequency Select. Tie to VL for 300kHz operation; tie to GND for
200kHz. Driven externally to SYNC between 240kHz and 350kHz.
7
TIME/ON5
Dual Purpose Timing Capacitor Pin and 5V SMPS ON/OFF Control Input. Input resistor of 1K is
required when using ON/OFF control input.
8
GND
Low noise Analog Ground and Feedback reference point.
9
REF
2.5V Reference Voltage Output. Bypass to GND with 1μF minimum capacitor.
10
PSAVE
Logic Control Input that disables PSAVE Mode when high. Connect to GND for power save mode.
11
RESET
Active Low Timed Output. RESET swings from GND to VL. Goes high after 32,000 clock cycle delay
following power up as a power good signal.
12
FB5
Feedback Input for 5V SMPS; Connect FB5 to a resistor divider for adjustable output mode and FB5
regulates to REF (approx. 2.5V). FB5 selects the 5V fixed output voltage setting when tied to GND.
13
CSL5
Current Sense Input for 5V SMPS.
14
CSH5
Current Sense Input for 5V SMPS.
15
SEQ
Input that selects SMPS power up sequence.
16
DH5
Gate Drive Output for the 5V, high side N-Channel MOSFET.
17
PHASE5
Switching Node inductor connection.
18
BST5
Boost capacitor connection for 5V, SMPS high-side gate drive. Connect a 0.1μF capacitor.
19
DL5
Gate Drive Output for the 5V, SMPS low-side N-Channel MOSFET.
20
PGND
Power Ground.
21
VL
5V, Internal Linear Regulator Output.
22
V+
Battery Voltage Input.
23
SHDN
Shutdown Control Input, active low.
24
DL3
Gate Drive Output for the 3.3V, SMPS low-side N-Channel MOSFET.
25
BST3
Boost Capacitor Connection for high side gate drive. Connect a 0.1μF capacitor.
26
PHASE3
Switching Node inductor Connection.
27
DH3
Gate Drive Output for the 3.3V, high-side N-Channel MOSFET.
28
RUN/ON3
ON/OFF Control Input of 3.3V SMPS.
Note: All logic level inputs and outputs are open collector TTL compatible.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC1402ISS | Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
| SC1403ITSTRT | Mobile Multi-Output PWM Controller with Lossless Current Sense |
| SC1403 | Mobile Multi-Output PWM Controller with Virtual Current SenseTM |
| SC1403ITSTR | Mobile Multi-Output PWM Controller with Virtual Current SenseTM |
| SC1404_05 | Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC, 16-TSSOP, Ind Temp |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1402ISS | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
| SC1403 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Mobile Multi-Output PWM Controller with Virtual Current SenseTM |
| SC1403_04 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Mobile Multi-Output PWM Controller with Lossless Current Sense |
| SC1403ITSTR | 制造商:Semtech Corporation 功能描述:IC, MULTI-OUTPUT PWM CONTROLLER, 28-TSSOP, Primary Input Voltage:15V, No. of Out |
| SC1403ITSTRT | 制造商:Semtech Corporation 功能描述:DC DC Cntrlr Triple-OUT PWM DC to DC Controller/Step Down 6V to 30V Input 28-Pin TSSOP T/R |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。