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LM20125的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:直流/直流开关稳压器 - 降压稳压器
  • 功能描述:具有可选汽车级的 2.95V 至 5.5V、5A、电流模式同步降压稳压器
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LM20125的产品详情:

The LM20125 is a full featured 500 kHz synchronous buck regulator capable of delivering up to 5A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suited for a wide variety of low voltage systems.

The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing is possible with the integrated power good circuit.

The LM20125 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20125 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.

The LM20125 is offered in a 16-pin HTSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks.

LM20125的优势和特性:
  • LM20125Q is AEC-Q100 Qualified and Manufactured on an Automotive Grade Flow
  • Input Voltage Range 2.95V to 5.5V
  • Accurate Current Limit Minimizes Inductor Size
  • 97% Efficiency with 500 kHz Switching Frequency
  • 32 m? Integrated FET Switches
  • Starts up into Pre-Biased Loads
  • Output Voltage Tracking
  • Peak Current Mode Control
  • Adjustable Output Voltage Down to 0.8V
  • Adjustable Soft-Start with External Capacitor
  • Precision Enable Pin with Hysteresis
  • Integrated OVP, UVLO, Power Good and Thermal Shutdown
  • HTSSOP 16-Pin Exposed Pad Package

All trademarks are the property of their respective owners.

LM20125的参数(英文):
  • Vin (Min) (V)
  • 2.95
  • Vin (Max) (V)
  • 5.5
  • Vout (Min) (V)
  • 0.8
  • Vout (Max) (V)
  • 5
  • Iout (Max) (A)
  • 5
  • Iq (Typ) (uA)
  • 3500
  • Switching frequency (Min) (kHz)
  • 500
  • Switching frequency (Max) (kHz)
  • 500
  • Features
  • Enable, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking
  • Rating
  • Catalog
  • Regulated outputs (#)
  • 1
  • Control mode
  • Current Mode
  • Duty cycle (Max) (%)
  • 85
LM20125具体的完整产品型号参数及价格(美元):

LM20125的完整型号有:LM20125MH/NOPB、LM20125MHE/NOPB、LM20125MHX/NOPB,以下是这些产品的关键参数及官网采购报价:

LM20125MH/NOPB,工作温度:-40 to 125,封装:HTSSOP (PWP)-16,包装数量MPQ:92个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM20125MH/NOPB的批量USD价格:1.394(1000+)

LM20125MHE/NOPB,工作温度:-40 to 125,封装:HTSSOP (PWP)-16,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM20125MHE/NOPB的批量USD价格:1.394(1000+)

LM20125MHX/NOPB,工作温度:-40 to 125,封装:HTSSOP (PWP)-16,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM20125MHX/NOPB的批量USD价格:1.162(1000+)

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LM20125的评估套件:

LM20125EVAL — 5A,500kHz PowerWise® 同步降压稳压器评估模块

The LM20125 is a full featured buck switching regulator capable of driving up to 5A of load current. The nominal 500 kHz switching frequency of the LM20125 reduces the size of the power stage components while still allowing for highly efficient operation. The LM20125 is capable of converting an (...)

LM20125 TINA-TI Average Spice Model

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