ST2S06A33
ST2S06A33 is (ST2S06xxx) Dual synchronous rectification manufactured by STMicroelectronics.
Features
- Step-down current mode PWM (1.5 MHz) DC-DC converter from 0.8 V
- Fixed or adjustable output voltage ..
- 2% DC output voltage tolerance
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Synchronous rectification Reset function for A and D versions Inhibit function for B version Internal soft start for start-up 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 m A over temperature range RDS(ON) 150 mΩ (typ.) Uses tiny capacitors and inductors Available in QFN12L (4x4 mm) the power dissipation may cause a 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 ponents 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 device is thermally protected and current limited to prevent damage due to accidental short circuit. The ST2S06 series is available in the QFN12L (4x4 mm) package.
QFN12L (4x4 mm)
Description
The ST2S06 is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, to replace the high current linear solution when
Table 1.
Device summary
Order code ST2S06APQR(1) ST2S06A33PQR ST2S06D33PQR ST2S06BPQR Package QFN12L (4x4 mm) QFN12L (4x4 mm) QFN12L (4x4 mm) QFN12L (4x4 mm) Packaging Tape and reel Tape and reel Tape and reel Tape and reel
1. Available on request.
March 2008
Rev 3
1/21
.st. 21
Contents
- ST2S06B
- ST2S06D33
Contents
1 2 3 4
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Diagram
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- - . 3 Pin configuration
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- - . . . 4 Maximum ratings
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