ST2S06B SYNCHRONOUS RETTIFICATION 0.5 A, 1.5 MHZ STEP-DOWN SWITCHING REGULATOR

The ST2S06A33 and ST2S06B are dual step-down DC-DC converters optimized for powering low-voltage digital cores in ODD applications and, generally, to replace high current linear solutions when the power dissipation may cause high heating of the application environment. It provides up to 0.5 A over an input voltage range of 2.5 V to 5.5 V.

A high switching frequency of 1.5 MHz allows the use of tiny surface-mount components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The devices are thermally protected and current-limited to prevent damage due to accidental short-circuit. The ST2S06A33 and ST2S06B are available in the QFN12L (4x4 mm) package

技术特性

Step-down current mode PWM (1.5 MHz) DC-DC converter
Fixed or adjustable output voltage from 0.8 V
2% DC output voltage tolerance
Synchronous rectification
Reset function for A version
Inhibit function for B version
Internal soft start for startup current limitation and power ON delay of 50-100 μs
Typical efficiency: > 90%
0.5 A output current capability
Non-switching quiescent current: max 1.2 mA over temperature range
RDS(ON)150 mΩ (typ.)
Uses tiny capacitors and inductors
Available in QFN12L (4x4 mm)

功能框图

ST2S06B 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
ST2S06BPQR	Active		1000	VFQFPN 12 4x4x1.0	Tape And Reel		ST2S06BPQR

DATASHEET

描述	版本	大小
ST2S06B : DS5452: Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator	5	293KB

APPLICATION NOTES

描述	版本	大小
AN2681: AN2681: ST2S06A33 / ST2S06B synchronous dual buck converter with reset	2	720KB

BOARDS AND TOOLS

型号	描述
STEVAL-ISA049V2	Synchronous dual buck converter with inhibit demonstration board based on the ST2S06B