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參數資料
| 型號： | SC1401ISS |
| 廠商： | Semtech Corporation |
| 英文描述： | HIGH PERFORMANCE SYNCHRONOUS BUCK CONTROLLER WITH LDO FOR PORTABLE POWER |
| 中文描述： | 高性能同步降壓控制器的便攜式功率穩(wěn)壓器 |
| 文件頁數： | 5/17頁 |
| 文件大?。?/td> | 202K |
| 代理商： | SC1401ISS |
SC1401
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
HIGH PERFORMANCE SYNCHRONOUS BUCK
CONTROLLER WITH LDO FOR PORTABLE
POWER
November 21, 2000
5
ELECTRICAL CHARACTERISTICS (continued)
Unless specified: VDD1 = 12V, VDD2 = 12V V5V = 5V, SHDN = PSAVE = 5V, T
A
= -40 °C to +85 °C. Typical values are at T
A
= +25°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FAULT DETECTION
Thermal Shutdown Threshold
Typical hysteresis = +10°V
150
°C
VDD1 Undervoltage Reset
Threshold
Falling edge of VDD1, hysteresis = 1%
4.2
4.5
4.8
V
V5V Undervoltage Reset
Threshold
Falling edge of V5V, hysteresis = 1%
3.75
4.0
4.25
V
FB Overvoltage Reset
Threshold
With respect to unloaded output voltage, typ.
Hysteresis = 1%
10
%
FB Undervoltage Reset
Threshold
With respect to unloaded output voltage, typ.
Hysteresis = 1%
-10
%
RESET Propagation Delay
FB Over/Under Voltage condition
1.5
μs
IOS Undervoltage Reset
Threshold
With respect to unloaded linear output voltage
-10
%
RESET Delay Time
With respect to f
OSC
27,000 32,000 37,000
clks
Logic Input High
SHDN,ENABLEIO
1.8
Logic Input Low
PSAVE,SYNC
1.6
V
Input Leakage Current
SHDN,ENABLEIO, PSAVE, SYNC
-1.0
1.0
μA
Logic Output Low Voltage
RESET, ISINK = 4mA
0.4
V
LOGICAL INPUTS AND OUTPUTS
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| SC1401 | High Performance Synchronous Buck Controller with LDO for Portable Power(用于便攜式電源帶低壓差輸出的高性能同步步降控制器（1.25-5.5V可調輸出）) |
| SC1402 | Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
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相關代理商/技術參數 |
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| SC1402 | 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 |
| 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 |
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