- 您现在的位置：买卖IC网 > PDF目录14074 > LT1777CS#TRPBF (Linear Technology)IC REG BUCK ADJ 0.7A 16SOIC PDF资料下载
参数资料
| 型号： | LT1777CS#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 24/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.7A 16SOIC |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.24 V ~ 30 V |
| 输入电压： | 12 V ~ 48 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz |
| 电流 - 输出： | 700mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-SOIC |
LT1777
TYPICAL APPLICATIO N
Minimum PC Board Size Application
The previously described basic applications employ power
path parts which are capable of delivering the full rated
input supply voltage and output current capabilities of the
LT1777. A substantial improvement in printed circuit
board area requirements can be achieved with the circuit
shown below. This uses a physically smaller and less
costly power inductor and a tantalum input capacitor. This
circuit is capable of delivering up to 300mA at 5V, from
input voltages as high as 28V. The only disadvantage is
that due to the increased resistance in the inductor, the
circuit is no longer capable of withstanding indefinite short
circuits to ground. The LT1777 will still current limit at its
nominal I LIM value, but this will overheat the inductor.
Momentary short circuits of a few seconds or less can still
be tolerated.
Minimum PC Board Area Application
V IN
10V TO 28V
+
C1
22 μ F
35V
C6
0.1 μ F
C4
100pF
C5
100pF
R3
12k
C3
3
12
14
10
V IN
SHDN V CC
LT1777
SYNC V SW
V C V D
FB
SGND
4
6
5
13
L1
0 μ H TO 2.2 μ H
(SEE BELOW)
L2
200 μ H
D1
+
C2
100 μ F
10V
C7
0.1 μ F
R1
36.5k
1%
V OUT
5V
2200pF
C1: AVX E CASE TPSE226M035R0300
C2: AVX D CASE TPSD107M010R0080
C3, C4, C5: NPO OR X7R
C6, C7: Z5U
D1: MOTOROLA 100V, 1A SMD SCHOTTKY
MBRS1100
RELATED PARTS
7
L1: SENSE INDUCTOR CAN VARY FROM 0 μ H TO 2.2 μ H
AS PER APPLICATION. SEE PREVIOUS SCHEMATICS
FOR EXAMPLES
L2: COILCRAFT CTX200-1 OR SIMILAR
R2
12.1k
1%
1777 TA03
PART NUMBER
LT1076
LT1533
LT1534
LT1576
LTC1622
LTC1624
LT1676/LT1776
DESCRIPTION
100kHz, 2A Step-Down Switching Regulator
Ultralow Noise 1A Switching Regulator
Ultralow Noise 2A Switching Regulator
200kHz, 1.5A Step-Down Switching Regulator
Low V IN Step-Down DC/DC Controller
High Efficiency SO-8 DC/DC Controller
Wide Input Range, High Efficiency, Step-Down Voltage Regulator
COMMENTS
Integrated 2A Switch, V IN Up to 46V
Push-Pull Design for Low Noise Isolated Supplies
Ultralow Noise Regulator for Boost Topologies
Output Up to 1.25A, Integrated Switch, SO-8 Package
Fixed Frequency 550kHz Operation, MSOP Package
200kHz Operation, V IN from 3.5V to 36V, SO-8 Package
7.4V to 60V Input, 100/200kHz Operation, 700mA Internal Switch
24
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 q www.linear-tech.com
1777f LT/TP 0899 4K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 1999
相关PDF资料 |
PDF描述 |
|---|---|
| HM71-40151LFTR | HIGH PERF LOW COST INDUCTORS |
| LT1777CS#TR | IC REG BUCK ADJ 0.7A 16SOIC |
| HM71-40101LFTR | HIGH PERF LOW COST INDUCTORS |
| HM71-40680LFTR | HIGH PERF LOW COST INDUCTORS |
| LTC1046IN8#PBF | IC REG SWITCHED CAP DIV INV 8DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1777I | 制造商:LINER 制造商全称:Linear Technology 功能描述:Low Noise Step-Down Switching Regulator |
| LT1777IS | 功能描述:IC REG BUCK ADJ 0.7A 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1777IS#PBF | 功能描述:IC REG BUCK ADJ 0.7A 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1777IS#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC |
| LT1777IS#TR | 功能描述:IC REG BUCK ADJ 0.7A 16SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
发布紧急采购，3分钟左右您将得到回复。