LM27403 - 具有温度补偿 DCR 电流感应的高性能同步降压控制器

LM27403是TI德州仪器公司的一款控制器（外部开关）产品，LM27403是具有温度补偿 DCR 电流感应的高性能同步降压控制器，本站介绍了LM27403的封装应用图解、特点和优点、功能等，并给出了与LM27403相关的TI元器件型号供参考。

LM27403 - 具有温度补偿 DCR 电流感应的高性能同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Up to 97% Efficiency and 93% Duty Cycle
Wide Input Voltage Range of 3 V to 20 V
Switching Frequency From 200 kHz to 1.2 MHz
Inductor-DCR-Based Overcurrent Protection With Thermal Compensation
0.6-V Reference With 1% Feedback Accuracy
30-ns Min On-Time for Low VOUT
Integrated High-Current MOSFET Drivers
- Adaptive Deadtime Control
Ultrafast Line and Load Transient Response
- High GBW Error Amplifier
- PWM Line Feedforward
Integrated VDD Bias Supply LDO Subregulator
Programmable System-Level OTP
Precision Enable With Hysteresis
Frequency Synchronization
Monotonic Prebiased Start-up
Programmable Soft-Start With Tracking
Output Remote Sense
Open-Drain Power Good Indicator
4-mm x 4-mm WQFN-24 PowerPAD™ Package

产品应用

DC-DC Converters and POL Modules
Telecommunications Infrastructure
Embedded Computing, Servers, Storage

产品说明

The LM27403 is a feature-rich, easy-to-use, synchronous buck controller offering exceptional levels of integration and performance for superior efficiency in high power density, point-of-load (POL) DC-DC regulator solutions. The resistor-programmable switching frequency from 200 kHz to 1.2 MHz and integrated, high-current MOSFET gate drivers with adaptive deadtime offer flexibility to optimize solution size and maximize conversion efficiency.

High precision and low output voltage are easily obtained with a 0.6-V, 1% accurate voltage reference together with a 30-ns high-side MOSFET minimum controllable on-time. Using lossless inductor dc resistance (DCR) current sensing and an inexpensive 2N3904 BJT to sense temperature remotely at the inductor, the LM27403 supports accurate and thermally compensated overcurrent protection (OCP).

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM27403	WQFN (24)	4.00 mm x 4.00 mm

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