UC2577-ADJ 简单步增稳压器
|
UC2577-ADJ |
| Iout(Max)(A) |
3 |
| Iq(Typ)(mA) |
45 |
| Vin(Min)(V) |
3 |
| Vin(Max)(V) |
40 |
| Vout(Min)(V) |
5 |
| Vout(Max)(V) |
60 |
| Switching Frequency(Max)(kHz) |
52 |
| Regulated Outputs(#) |
1 |
| Duty Cycle(Max)(%) |
100 |
| Operating Temperature Range(°C) |
-40 to 125,-40 to 85 |
| Pin/Package |
5DDPAK/TO-263, 5TO-220 |
| Topology |
Boost |
UC2577-ADJ 描述
The UC2577-ADJ device provides all the active functions necessary to implement step-up (boost), flyback, and forward converter switching regulators. Requiring only a few components, these simple regulators efficiently provide up to 60V as a step-up regulator, and even higher voltages as a flyback or forward converter regulator.
The UC2577-ADJ features a wide input voltage range of 3.0V to 40V and an adjustable output voltage. An on-chip 3.0A NPN switch is included with undervoltage lockout, thermal protection circuitry, and current limiting, as well as soft start mode operation to reduce current during startup. Other features include a 52kHz fixed frequency on-chip oscillator with no external components and current mode control for better line and load regulation.
UC2577-ADJ 特性
- Requires Few External Components
- NPN Output Switches 3.0A, 65V(max)
- Extended Input Voltage Range: 3.0V to 40V
- Current Mode Operation for Improved Transient Response, Line Regulation, and Current Limiting
- Soft Start Function Provides Controlled Startup
- 52kHz Internal Oscillator
- Output Switch Protected by Current Limit, Undervoltage Lockout and Thermal Shutdown
- Improved Replacement for LM2577-ADJ Series
- TYPICAL APPLICATIONS
- Simple Boost and Flyback Converters
- SEPIC Topology Permits Input Voltage to be Higher or Lower than Output Voltage
- Transformer Coupled Forward Regulators
- Multiple Output Designs
UC2577-ADJ 芯片订购指南
UC2577-ADJ 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| UC2577T-ADJ |
Green (RoHS & no Sb/Br) |
CU SN |
N/A for Pkg Type |
|
UC2577T-ADJ |
| UC2577T-ADJG3 |
Green (RoHS & no Sb/Br) |
CU SN |
N/A for Pkg Type |
|
UC2577T-ADJG3 |
| UC2577TDKTTT-ADJ |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC2577TDKTTT-ADJ |
| UC2577TDKTTT-ADJG3 |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC2577TDKTTT-ADJG3 |
| UC2577TDTR-ADJ |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC2577TDTR-ADJ |
| UC2577TDTR-ADJG3 |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC2577TDTR-ADJG3 |
UC2577-ADJ 应用技术支持与电子电路设计开发资源下载
- UC2577-ADJ 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
