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ST2S06D33 数据表(PDF) 1 Page - STMicroelectronics |
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ST2S06D33 数据表(HTML) 1 Page - STMicroelectronics |
1 / 21 page March 2008 Rev 3 1/21 21 ST2S06A33 ST2S06B - ST2S06D33 Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator Features ■ 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 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 mA over temperature range ■ RDS(ON) 150 mΩ (typ.) ■ Uses tiny capacitors and inductors ■ Available in 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 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 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 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) Table 1. Device summary Order code Package Packaging ST2S06APQR(1) QFN12L (4x4 mm) Tape and reel ST2S06A33PQR QFN12L (4x4 mm) Tape and reel ST2S06D33PQR QFN12L (4x4 mm) Tape and reel ST2S06BPQR QFN12L (4x4 mm) Tape and reel 1. Available on request. www.st.com |
类似零件编号 - ST2S06D33 |
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类似说明 - ST2S06D33 |
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