参数资料
型号: LT1172CT#31PBF
厂商: Linear Technology
文件页数: 24/24页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ TO220
标准包装: 50
类型: 降压(降压),升压(升压),反相,Cuk,回扫,正向转换器
输出类型: 可调式
输出数: 1
输出电压: 1.25 V ~ 40 V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式
频率 - 开关: 100kHz
电流 - 输出: 1.25A
同步整流器:
工作温度: 0°C ~ 100°C
安装类型: 通孔
封装/外壳: TO-220-5 成形引线
包装: 管件
供应商设备封装: TO-220-5
LT1170/LT1171/LT1172
TYPICAL APPLICATION
Positive Current Boosted Buck Converter
V IN
28V
470Ω
2W
C3
0.47μF
C6
R6
470Ω
V IN
D2
0.002μF
1: N
V SW
GND
LT1170
V C
FB
R7
1k
V IN
R2
1.24k
N ≈ 0.25
D1
C5*
100μF
+
R3
680Ω
C1
C4
0.01μF
6
4
7
LM308
+
2
3
R5
5k
0.33μF
200pF
8
R4
1.24k
V OUT
R1
5k
+
C2
5000μF
5V, 10A
RELATED PARTS
* REQUIRED IF INPUT LEADS ≥ 2"
1170/1/2 TA18
PART NUMBER
DESCRIPTION
COMMENTS
LT1070/LT1071/LT1072 5A/2.5A/1.25A High Efficiency Switching Regulators
40kHz, V IN to 60V, V SW to 75V
LT1074/LT1076
LT1082
LT1268/LT1268B
LT1269/LT1271
LT1270/LT1270A
LT1370
LT1371
LT1372/LT1377
LT1373
LT1374
LT1375/LT1376
LT1425
LT1507
LT1533
5.5A/2A Step-Down Switching Regulators
1A, High Voltage, High Efficiency Switching Regulator
7.5A, 150kHz Switching Regulators
4A High Efficiency Switching Regulators
8A and 10A High Efficiency Switching Regulators
500kHz High Efficiency 6A Switching Regulator
500kHz High Efficiency 3A Switching Regulator
500kHz and 1MHz High Efficiency 1.5A Switching Regulators
250kHz Low Supply Current High Efficiency 1.5A Switching Regulator
4A, 500kHz Step-Down Switching Regulator
1.5A, 500kHz Step-Down Switching Regulators
Isolated Flyback Switching Regulator
500kHz Monolithic Buck Mode Switching Regulator
Ultralow Noise 1A Switching Regulator
100kHz, Also for Positive-to-Negative Conversion
V IN to 75V, V SW to 100V, Telecom
V IN to 30V, V SW to 60V
100kHz/60kHz, V IN to 30V, V SW to 60V
60kHz, V IN to 30V, V SW to 60V
High Power Boost, Flyback, SEPIC
Good for Boost, Flyback, Inverting, SEPIC
Directly Regulates ±V OUT
Low 1mA Quiescent Current
Synchronizable, V IN to 25V
Up to 1.25A Out from an SO-8
6W Output, ±5% Regulation, No Optocoupler Needed
1.5A Switch, Good for 5V to 3.3V
Push-Pull, <100μV P-P Output Noise
117012fg
24 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417
LT 0410 REV G ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1991
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