ST1S09
Features
- 1.5MHz fixed frequency PWM with current control mode
- 2A output current capability ..
- Typical efficiency: > 90%
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2% DC output voltage tolerance Two versions available: Power Good or Inhibit Integrated output over-voltage protection Non switching quiescent current: (typ) 1.5m A over temperature range RDSON (typ) 100mΩ Utilizes tiny capacitors and inductors Operating junction temp. -30°C to 125°C Available in DFN6 3x3mm exposed pad Moreover, since the required synchronous rectifier is integrated, the number of the external ponents is reduced to minimum: a resistor divider, an inductor and two capacitors. The Power Good function continuously monitors the output voltage. An open drain power good flag is released when the output voltage is within regulation. In addition, a low output ripple is guaranteed by the current mode PWM topology and by the use of low E.S.R. SMD ceramic capacitors. The device is thermally protected and the output current limited to...
