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參數(shù)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(shù)： | 3/17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
3
ABSOLUTE MAXIMUM RATINGS
PARAMETER
MAXIMUM
UNITS
VDD1 to GND
-0.3 to +36
V
PGND to GND
- 0.3 to 0.3
V
V5V, FB, CSH, CSL, IOS to GND
-0.3 to +6
V
SYNC, SHDN, PSAVE, ENABLEIO to GND
-0.3 to +6
V
BST to GND
-0.3 to +36
V
BST to PHASE
-0.3 to 6
V
VDD2 to GND
-0.3 to +36
V
GATEIO to GND
9
V
Junction operating temperature (T
J
)
-40 to +125
°C
Thermal resistance junction to ambient (
θ
JA
)
50
°C/W
Storage temperature
-65 to +150
°C
Lead soldering temperature
+300, 10 seconds
°C
ELECTRICAL CHARACTERISTICS
Unless specified: VDD1 = 12V, VDD2 = 12V V5V = 5V,
=
= 5V, T
A
= -40 °C to +85 °C . Typical values are at T
A
= +25°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SMPS CONTROLLER
VDD1 Input Voltage Range
6.0
30.0
V
VOUT SMPS
VREF
5.5
V
Internal BandGap Voltage, VREF
Measured at the Feedback pin
1.225
1.250
1.275
V
Load Regulation
0mV < CSH - CSL < 100mV
2
%
Line Regulation
6V < VDD1 < 30V
0.03
%/V
Overcurrent-Limit Threshold
CSH - CSL
100
130
160
mV
PSAVE Mode Threshold
CSH - CSL, PSAVE = 0 V
30
mV
Soft-Start Ramp Time
From enable to 95% full current limit with
respect to f
OSC
512
clks
Oscillator Frequency
SYNC = V5V
SYNC = 0V
265
165
300
200
335
235
kHz
Maximum Duty Factor
85
90
87
93
%
SYNC = V5V
SYNC = 0V
Note 1: This device is ESD sensitive. Use of standard ESD handling precautions is required.
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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(diào)輸出）) |
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相關(guān)代理商/技術(shù)參數(shù) |
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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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