参数资料
型号: LT1931AIS5#TRPBF
厂商: Linear Technology
文件页数: 12/12页
文件大小: 0K
描述: IC REG INV 1A TSOT23-5
标准包装: 2,500
类型: 反相
输出数: 1
输入电压: 2.45 V ~ 16 V
PWM 型: 电流模式
频率 - 开关: 2.2MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
包装: 带卷 (TR)
供应商设备封装: TSOT-23-5
LT1931/LT1931A
TYPICAL APPLICATIO
2.2MHz, 12V to – 5V Converter Uses Low Profile Coupled Inductor
V IN
L1A
4.7 μ H
C2
0.1 μ F
L1B
4.7 μ H
12V
V IN
SHDN
SW
R1
D1
V OUT
–5V
450mA
C1
2.2 μ F
LT1931A
GND
NFB
28.7k
R2
C3
4.7 μ F
10k
C1: TAIYO YUDEN Y5V EMK212F225ZG
C2: 0.1 μ F 25V X5R
C3: TAIYO YUDEN X5R JMK212BJ475MG
D1: ON SEMICONDUCTOR MBR0520
L1: SUMIDA CLQ4D10-4R7 DRAWING #5382-T039
Efficiency
80
75
70
65
60
55
50
1931 TA07a
0
100
200 300 400
500
LOAD CURRENT (mA)
1931 TA07b
RELATED PARTS
PART NUMBER
LT1307
LT1316
LT1317
LT1610
LT1611
LT1613
LT1615
LT1617
LT1930/LT1930A
DESCRIPTION
Single Cell Micropower 600kHz PWM DC/DC Converter
Burst Mode TM Operation DC/DC with Programmable Current Limit
2-Cell Micropower DC/DC with Low-Battery Detector
Single Cell Micropower DC/DC Converter
Inverting 1.4MHz Switching Regulator in 5-Lead ThinSOT
1.4MHz Switching Regulator in 5-Lead ThinSOT
Micropower Constant Off-Time DC/DC Converter in 5-Lead ThinSOT
Micropower Inverting DC/DC Converter in 5-Lead ThinSOT
1.2MHz/2.2MHz, 1A Switching Regulators in 5-Lead ThinSOT
COMMENTS
3.3V at 75mA from One Cell, MSOP Package
1.5V Minimum, Precise Control of Peak Current Limit
3.3V at 200mA from Two Cells, 600kHz Fixed Frequency
3V at 30mA from 1V, 1.7MHz Fixed Frequency
–5V at 150mA from 5V Input. Tiny SOT-23 Package
5V at 200mA from 3.3V Input. Tiny SOT-23 Package
20V at 12mA from 2.5V. Tiny SOT-23 Package
–15V at 12mA from 2.5V. Tiny SOT-23 Package
5V at 450mA from 3.3V Input. Tiny SOT-23 Package
Burst Mode operation is a trademark of Linear Technology Corporation.
1931fa
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com
LT/LT 1005 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2000
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