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參數(shù)資料
| 型號： | SC1409ISTR |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關(guān)穩(wěn)壓9V輸出 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 109K |
| 代理商： | SC1409ISTR |
SC1409
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1 A Synchronous Switching Regulator
June 28, 2000
1
DESCRIPTION
The SC1409 is a versatile, voltage-mode switching
regulator designed for use in battery operated power
supply applications. A simple, fixed-voltage buck regu-
lator can be implemented using the SC1409 with a
minimum of external components. Internal MOSFETs
and control circuitry minimize board space and design
time. The small device footprint allows for compact
circuit design.
SC1409 features include a temperature compensated
voltage reference, triangle wave oscillator, hiccup
mode current limit, an internally compensated error
amplifier, overcurrent temperature protection, soft
start, and under voltage lock out.
The SC1409 operates at a selectable, fixed frequency
of 300kHz or 500kHz, or can be synchronized to an
external clock within this range, providing an optimum
compromise between efficiency, external component
size, and cost.
FEATURES
=
Internal MOSFETs
=
Excellent efficiency >88%
=
1% Voltage accuracy
=
Built-in over current protection
=
1A Output current
=
5μA Standby current
=
Industrial temperature range
=
300kHz/500kHz selectable frequency
APPLICATIONS
=
Handheld equipment
=
PDA power supplies
=
Notebook I/O power supplies
=
Peripheral card supplies
=
High density DC/DC conversion
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
ORDERING INFORMATION
DEVICE
(1)
PACKAGE
SC1409ISTR
SO-8
Note:
(1) Only available in tape and reel packaging. A reel
contains 2500 devices.
+
C1
47uF/16V
L1
100uH
+
C2
47uF/16V
C3
0.033uF
Vout
U1
SC1409IS
8
1
2
3
4
5
6
7
ISET
SYNC/FSET
EN/SS
AGND
FB
PGND
PHASE
VIN
R4
C6
0.1uF
Vout R3 R4
3.45V 1.87k 1.00k
3.30V 1.74k 1.00k
3.10V 1.58k 1.00k
2.90V 1.40k 1.00k
2.80V 1.33k 1.00k
2.50V 1.07k 1.00k
1.50V 249 1.00k
Vin=5V
R1
OPEN
R2
APPLICATION CIRCUIT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC140B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRIAC|200V V(DRM)|6A I(T)RMS|TO-220 |
| SC140D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRIAC|400V V(DRM)|6A I(T)RMS|TO-220 |
| SC140M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRIAC|600V V(DRM)|6A I(T)RMS|TO-220 |
| SC141 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:6-A AND 10-A SILICON TRIACS |
| SC1410ACQSTRT | 制造商:Semtech Corporation 功能描述:IC, BATTERY CHARGER, 1.5A, QSOP-16, Battery Type:Li-Ion, NiCd, NiMH, Input Volta |
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