ST1S09IPUR DC-DC Switching Converters by STMicroelectronics

2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification

Status: Active
Series: ST1S09
RoHS: Compliant
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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.

Prices starting from US$0.84


Distributor Starting From Stock
Logo for Future Electronics Future Electronics US$0.84
33,000
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Logo for Newark Electronics Newark Electronics US$1.21
3,300
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Logo for element14 element14 US$0.99
3,300
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Logo for Avnet America Avnet America US$0.90
-
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Features

Operating junction temp. -30 °C to 125 °C
Utilizes tiny capacitors and inductors
Available in DFN6 (3 x 3 mm) exposed pad
Non switching quiescent current: (typ) 1.5 mA over temperature range
Integrated output over-voltage protection
1.5 MHz fixed frequency PWM with current control mode
Typical efficiency: > 90%
2 A output current capability
Two versions available: power good or inhibit
RDSON (typ) 100 mΩ
2 % DC output voltage tolerance

Alternative Descriptions

ST1S09 Series 2 A 1.5 MHz PWM Step Down Switching Regulator - DFN-6 | Future Electronics
Dc/Dc Conv, Buck, 1.5Mhz, 150Deg C Rohs Compliant: Yes |Stmicroelectronics ST1S09IPUR | Newark Electronics
DC/DC CONV, BUCK, 1.5MHZ, 150DEG C | element14
Conv DC-DC Single Step Down 2.7V to 6V 6-Pin DFN T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ST1S09IPUR?

Additional datasheets, footprints and schematics for ST1S09IPUR are listed on our Part Details page. You can also find images and similar parts to ST1S09IPUR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for ST1S09IPUR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view ST1S09IPUR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does ST1S09IPUR fall under?

The ST1S09IPUR is listed under Power Management > DC-DC Switching Converters > Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to ST1S09IPUR when available in the Buck Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the ST1S09IPUR you can contact the distributor directly for product support, shipping queries etc.

Is the ST1S09IPUR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for ST1S09IPUR have stock available?

Authorised distributors including Future Electronics, Newark Electronics, element14, Farnell and Avnet America have stock available or on a lead time for ST1S09IPUR.

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