LM26400Y - 双路 2A、500kHz 宽输入范围降压稳压器

LM26400Y是TI德州仪器公司的一款转换器（集成开关）产品，LM26400Y是双路 2A、500kHz 宽输入范围降压稳压器，本站介绍了LM26400Y的封装应用图解、特点和优点、功能等，并给出了与LM26400Y相关的TI元器件型号供参考。

LM26400Y - 双路 2A、500kHz 宽输入范围降压稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Input Voltage Range of 3 V to 20 V
Dual 2-A Output
Output Voltage Down to 0.6 V
Internal Compensation
500-kHz PWM Frequency
Separate Enable Pins
Separate Soft-Start Pins
Frequency Foldback Protection
175-mΩ NMOS Switch
Integrated Bootstrap Diodes
Overcurrent Protection
HTSSOP and WSON Packages
Thermal Shutdown

产品应用

DTV-LCD
Set-Top Boxes
XDSL
Automotive
Computing Peripherals
Industrial Controls
Points-of-Load

产品说明

The LM26400Y device is a monolithic, two-output fixed-frequency PWM step-down DC-DC regulator, in a 16-pin WSON or thermally-enhanced HTSSOP package. With a minimum number of external components and internal loop compensation, the LM26400Y is easy to use.

The ability to drive 2-A loads with an internal 175-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in a high-power density design. The world class control circuitry allows for an ON-time as low as 40 ns, thus supporting high-frequency conversion over the entire input range of 3 V to 20 V and down to an output voltage of only 0.6 V. The LM26400Y utilizes peak current-mode control and internal compensation to provide high-performance regulation over a wide range of line and load conditions. Switching frequency is internally set to 500 kHz, optimal for a broad range of applications in terms of size versus thermal tradeoffs.

Given a nonsynchronous architecture, efficiencies above 90% are easy to achieve. External shutdown is included, enabling separate turnon and turnoff of the two channels. Additional features include programmable soft-start circuitry to reduce inrush current, pulse-by-pulse current limit and frequency foldback, integrated bootstrap structure, and thermal shutdown.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM26400Y	WSON (16)	5.00 mm × 5.00 mm
LM26400Y	HTSSOP (16)	4.40 mm × 5.00 mm

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