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参数资料
| 型号： | LTC3632IDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20MA 8DFN |
| 标准包装： | 121 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 50 V |
| 输入电压： | 4.5 V ~ 50 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 20mA |
| 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： | 8-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
LTC3632
High Efficiency, High Voltage
20mA Synchronous
Step-Down Converter
Wide Input Voltage Range: Operation from
Overvoltage Lockout Provides Protection Up to 60V
Internal High Side and Low Side Power Switches
No Compensation Required
20mA Output Current
Low Dropout Operation: 100% Duty Cycle
Low Quiescent Current: 12μA
Wide Output Voltage Range: 0.8V to V IN
0.8V ±1% Feedback Voltage Reference
Adjustable Peak Current Limit
Internal and External Soft-Start
Precise RUN Pin Threshold with Adjustable
Few External Components Required
Low Profile (0.75mm) 3mm × 3mm DFN and
4mA to 20mA Current Loops
Industrial Control Supplies
Distributed Power Systems
Portable Instruments
Battery-Operated Devices
Automotive Power Systems
FEATURES
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4.5V to 50V
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Hysteresis
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Thermally Enhanced MS8E Packages
APPLICATIONS
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TYPICAL APPLICATION
DESCRIPTION
The LTC ? 3632 is a high efficiency, high voltage step-down
DC/DC converter with internal high side and synchronous
power switches that draws only 12μA typical DC sup-
ply current at no load while maintaining output voltage
regulation.
The LTC3632 can supply up to 20mA load current and
features a programmable peak current limit that provides
a simple method for optimizing efficiency in lower current
applications. The LTC3632’s combination of Burst Mode ?
operation, integrated power switches, low quiescent cur-
rent, and programmable peak current limit provides high
efficiency over a broad range of load currents.
With its wide 4.5V to 50V input range and internal
overvoltage monitor capable of protecting the part through
60V surges, the LTC3632 is a robust converter suited for
regulating a wide variety of power sources. Additionally,
the LTC3632 includes a precise run threshold and soft-start
feature to guarantee that the power system start-up is
well-controlled in any environment.
The LTC3632 is available in the thermally enhanced
3mm × 3mm DFN and MS8E packages.
L , LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Efficiency and Power Loss vs Load Current
100
5V, 20mA Step-Down Converter
90
1000
V IN
5V TO 50V
1μF
V IN SW
LTC3632
RUN
HYST V FB
I SET SS
GND
1mH
1.47M
280k
3632 TA01a
V OUT
5V
10μF 20mA
80
70
60
50
40
EFFICIENCY
POWER LOSS
100
10
30
20
0.1
1
LOAD CURRENT (mA)
V IN = 10V 1
V IN = 48V
10
3632 TA01b
3632fc
1
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相关代理商/技术参数 |
参数描述 |
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| LTC3632IMS8E#PBF | 功能描述:IC REG BUCK SYNC ADJ 20MA 8MSOP 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 |
| LTC3632IMS8E#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 20MA 8MSOP 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 |
| LTC3633AEFE#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 28-Pin TSSOP EP 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP 制造商:Linear Technology 功能描述:BUCK DUAL 3.6-20V 4MHZ 3A 28TSSOP 制造商:Linear Technology 功能描述:BUCK, DUAL, 3.6-20V, 4MHZ, 3A, 28TSSOP 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Dual 3A, 20Vin, 4MHz, Monolithic Synchronous Step-Down Regu 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 4MHZ, TSSOP-28, Primary Input Voltage:15V, No. of Outputs:2, Output Current:3A, No. of Pins:28, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited, Package / Case:28-TSSOP , RoHS Compliant: Yes |
| LTC3633AEFE#TRPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 28-Pin TSSOP EP T/R 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP |
| LTC3633AEFE-1#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Down 3.6V to 20V 28-Pin TSSOP EP 制造商:Linear Technology 功能描述:IC REG BUCK ADJ 3A DL 28TSSOP 制造商:Linear Technology 功能描述:BUCK DUAL 3.6-20V 4MHZ 3A 28TSSOP 制造商:Linear Technology 功能描述:BUCK, DUAL, 3.6-20V, 4MHZ, 3A, 28TSSOP 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Dual 3A, 20Vin, 4MHz, Monolithic Synchronous Step-Down Regu 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 4MHZ, TSSOP-28, Primary Input Voltage:15V, No. of Outputs:2, Output Current:3A, No. of Pins:28, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited, Package / Case:28-TSSOP , RoHS Compliant: Yes |
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