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ST1S09IPUR
2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification
1.5 MHz fixed frequency PWM | 2 A output current capability | DFN6 (3 x 3 mm) package
2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification
1.5 MHz fixed frequency PWM | 2 A output current capability | DFN6 (3 x 3 mm) package
- Manufacturer: STMicroelectronics
- Package: DFN6 (3 x 3 mm)
- Product Family: PWM step-down switching regulator
- 2 % DC output voltage tolerance
- versions: inhibit
The ST1S09 is a step-down DC-DC converter
optimized for powering low output voltage
applications. It supplies a current in excess of 2 A
over an input voltage range from 2.7 V to 6 V.
A high PWM switching frequency (1.5 MHz) allows the use of tiny surface-mount components. Moreover, since the required synchronous rectifier is integrated, the number of the external components 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 ESR SMD ceramic capacitors. The device is thermally protected and the output current limited to prevent damages due to accidental short circuit. The ST1S09 is available in the DFN6 (3 x 3 mm) package.
A high PWM switching frequency (1.5 MHz) allows the use of tiny surface-mount components. Moreover, since the required synchronous rectifier is integrated, the number of the external components 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 ESR SMD ceramic capacitors. The device is thermally protected and the output current limited to prevent damages due to accidental short circuit. The ST1S09 is available in the DFN6 (3 x 3 mm) package.
- 1.5 MHz fixed frequency PWM with current control mode
- 2 A output current capability
- Typical efficiency: > 90%
- 2 % DC output voltage tolerance
- Two versions available: power good or inhibit
- Integrated output over-voltage protection
- Non switching quiescent current: (typ) 1.5 mA over temperature range
- RDSON (typ) 100 mΩ
- Utilizes tiny capacitors and inductors
- Operating junction temp. -30 °C to 125 °C
- Available in DFN6 (3 x 3 mm) exposed pad
NOT PULLED - NOT USED - NOT REFURBISHED - NOT
SOLDERED - NOT RE-MARKED - NOT FAKED EXCLUSIVELY NEW OLD STOCK (NOS)
AUSSCHLIESSLICH NUR ALTE NEUE WARE (NOS) aus Altlagerbestand
entnommen aus der original Verpackung (siehe Foto)
entnommen aus der original Verpackung (siehe Foto)
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