参数资料
型号: LT1270ACT#PBF
厂商: Linear Technology
文件页数: 4/4页
文件大小: 0K
描述: IC REG MULTI CONFIG 10A TO220-5
标准包装: 50
类型: 降压(降压),升压(升压),反相,回扫
输出数: 1
输入电压: 3.5 V ~ 30 V
PWM 型: 电流模式
频率 - 开关: 60kHz
电流 - 输出: 10A
同步整流器:
工作温度: 0°C ~ 125°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
产品目录页面: 1326 (CN2011-ZH PDF)
LT1270A/LT1270
TYPICAL APPLICATIO S
Negative-to-Positive Buck-Boost Converter
L2
Negative Buck Converter
+
+ C4
V IN
–12V
OPTIONAL
INPUT
FILTER
L3
+
C4
200 μ F*
GND
V IN
LT1270
L1
55 μ H**
V SW
FB
V C
R3
2.2k
C1
0.22 μ F
LT1270 ? TA06
D1
1.24k
OPTIONAL
OUTPUT
FILTER
C2
2000 μ F
C3
V OUT
12V, 3A
R1
11.3k
OPTIONAL
INPUT FILTER
L3
10 μ H
V IN
–20V
+
C3
100 μ F*
GND
V IN
LT1270
V SW
FB
V C
C1
R3
LT1270 ? TA07
D1
L1
100 μ H**
R2
1.24k
+
C2 R1
1000 μ F 4.64k
LOAD
12k
OPTIONAL
OUTPUT
L2
4 μ F
–5.2V, 7.5A
FILTER 200 μ F
*REQUIRED IF INPUT LEADS ≥ 2"
**PULSE ENGINEERING #PE-92116
PACKAGE DESCRIPTIO
T Package
5-Lead Plastic TO-220 (Standard)
(Reference LTC DWG # 05-08-1421)
.147 – .155
*REQUIRED IF INPUT LEADS ≥ 2"
**PULSE ENGINEERING #PE-92115
.165 – .180
.390 – .415
(9.906 – 10.541)
(3.734 – 3.937)
DIA
(4.191 – 4.572)
.045 – .055
(1.143 – 1.397)
.230 – .270
(5.842 – 6.858)
.460 – .500
(11.684 – 12.700)
.570 – .620
(14.478 – 15.748)
.330 – .370
(8.382 – 9.398)
.700 – .728
(17.78 – 18.491)
SEATING PLANE
.620
(15.75)
TYP
.095 – .115
(2.413 – 2.921)
.152 – .202
.260 – .320
(6.60 – 8.13)
(3.861 – 5.131)
.155 – .195*
(3.937 – 4.953)
.013 – .023
(0.330 – 0.584)
BSC
.067
(1.70)
.028 – .038
(0.711 – 0.965)
.135 – .165
(3.429 – 4.191)
* MEASURED AT THE SEATING PLANE
T5 (TO-220) 0801
RELATED PARTS
PART NUMBER
LT1074/HV
LTC3414
LT3430/LT3431
DESCRIPTION
4.4A (I OUT ), 100kHz, High Efficiency Step-Down
DC/DC Converter
4A (I OUT ), 4MHz, Synchronous Step-Down
DC/DC Converter
60V, 2.75A (I OUT ), 200/500kHz, High Efficiency
Step-Down DC/DC Converter
COMMENTS
V IN : 7.3V to 45/64V, V OUT (min) = 2.21V, I Q = 8.5mA, I SD = 10 μ A,
DD-5/7, TO220-5/7
V IN : 2.3V to 5.5V, V OUT (min) = 0.8V, I Q = 64 μ A, I SD <1 μ A,
TSSOP20E
V IN : 5.5V to 60V, V OUT (min) = 1.2V, I Q = 2.5mA, I SD = 30 μ A,
TSSOP16E
1270afc
(408) 432-1900 q FAX: (408) 434-0507 www.linear.com
4
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
q
LT/TP 1203 1K REV C ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1992
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