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参数资料
| 型号： | SC1408CS |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | MS-012AA, SO-8 |
| 文件页数： | 1/7页 |
| 文件大小： | 88K |
| 代理商： | SC1408CS |
1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
LOW VOLTAGE, BOOST DC-DC
CONTROLLER
SC1408
PRELIMINARY - September 17, 1999
1
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
ORDERING INFORMATION
Part Number
(1)
Package
Temp. Range (T
J)
SC1408CS
SO-8
0° to 150°C
Note:
(1) Add suffix ‘TR’ for tape and reel packaging.
PIN CONFIGURATION
BLOCK DIAGRAM
DESCRIPTION
The SC1408 is a low voltage boost controller that oper-
ates from a 1.8V to 16.5V input range. An enable al-
lows the user to turn the controller off reducing supply
current to less than 2A typical. Output voltage can be
preset to 5V or is adjustable from 3V to 16.5V with a
resistor divider. The controller changes frequency in
low load conditions to improve efficiency.
The SC1408 was designed for two cell Alkaline or sin-
gle cell Lithium Ion battery applications. With the
proper external components it can be used as a boost
converter or a buck/boost converter.
A current sense is implemented with an external resis-
tor that is not in the load current path.
FEATURES
1.8V to 16.5V input range
Up to 10W output power
Adjustable output
Up to 300kHz switching frequency
10A max shutdown current
SO-8 package
APPLICATIONS
PDA Power supplies
Battery powered applications
Positive LCD Bias generator
Portable communications (cellular phones)
Peripheral card supplies
Industrial power supplies
VDD
TRIG
Q
TRIG
Q
R
S
Q
+
-
+
-
+
-
FB
50mV
+
-
ISENSE
0.1V
BST
2.5V
GATE
SHDN
AGND
REF
GND
1.20V
REFERENCE
LOW
VOLTAGE
OSCILLATOR
MIN OFF TIME
ONE SHOT
2.3uS
MAX ON TIME
ONE SHOT
16uS
BIAS
CURRENT
SENSE AMP
ERROR
COMP
MODE
DETECT
START
UP
COMP
Top View
(SO-8)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC1408IMS.TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Voltage, Boost DC-DC Controller |
| SC1408IMSTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Voltage, Boost DC-DC Controller |
| SC1408IS.TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:LOW VOLTAGE, BOOST DC-DC CONTROLLER |
| SC1408IS.TRT | 制造商:Semtech Corporation 功能描述:IC BOOST DC/DC VOLTAGE CONTROLLER 8-SOIC, Primary Input Voltage:16.5V, No. of Ou |
| SC1408ISTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Voltage, Boost DC-DC Controller |
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