LMR12020 - LMR12020 SIMPLE SWITCHER? 20Vin、2.0A 降压稳压器

LMR12020是TI德州仪器公司的一款转换器（集成开关）产品，LMR12020是LMR12020 SIMPLE SWITCHER? 20Vin、2.0A 降压稳压器，本站介绍了LMR12020的封装应用图解、特点和优点、功能等，并给出了与LMR12020相关的TI元器件型号供参考。

LMR12020 - LMR12020 SIMPLE SWITCHER? 20Vin、2.0A 降压稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LMR12015/20 regulator is a monolithic, high frequency, PWM step-down DC-DC converter in a 10-pin WSON package. It contains all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components the LMR12015/20 is easy to use. The ability to drive 1.5/2A loads respectively, with an internal 150 m? NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak current mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.

产品特性

Space Saving 3 x 3 x 0.8 mm WSON-10 Package
Input Voltage Range of 3V to 20V
Output Voltage Range of 1V to 18V
LMR12015 and LMR12020 Deliver 1.5A and 2A Maximum Output Current Respectively
2 MHz Switching Frequency
Frequency Synchronization from 1.00 MHz to 2.35 MHz
70 nA Shutdown Current
1% Voltage Reference Accuracy
Peak Current Mode PWM Operation
Thermal Shutdown
Internally Compensated
Internal Soft-Start
WEBENCH Enabled

Performance Benefits

Tight Accuracy for Powering Digital ICs
Extremely Easy to Use
Tiny Overall Solution Reduces System Cost

SIMPLE SWITCHER is a trademark of Texas Instruments. WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

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