STMicroelectronics, ST1PS03A1QTR Step-Down Switching Regulator, 1-Channel 400mA Selectable 12-Pin, TQFN-12
- RS Stock No.:
- 234-8886P
- Mfr. Part No.:
- ST1PS03A1QTR
- Brand:
- STMicroelectronics
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Subtotal 10 units (supplied on a continuous strip)*
£12.82
(exc. VAT)
£15.38
(inc. VAT)
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In Stock
- Plus 3,000 unit(s) shipping from 06 October 2025
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Units | Per unit |
|---|---|
| 10 - 95 | £1.282 |
| 100 - 245 | £1.256 |
| 250 - 495 | £1.23 |
| 500 + | £1.206 |
*price indicative
- RS Stock No.:
- 234-8886P
- Mfr. Part No.:
- ST1PS03A1QTR
- Brand:
- STMicroelectronics
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | STMicroelectronics | |
| Maximum Output Current | 400mA | |
| Maximum Output Voltage | 3.3 V | |
| Regulator Function | Step Down | |
| Minimum Output Voltage | 1.6 V | |
| Minimum Input Voltage | 1.8 V | |
| Output Type | Selectable | |
| Number of Outputs | 1 | |
| Pin Count | 12 | |
| Package Type | TQFN-12 | |
Select all | ||
|---|---|---|
Brand STMicroelectronics | ||
Maximum Output Current 400mA | ||
Maximum Output Voltage 3.3 V | ||
Regulator Function Step Down | ||
Minimum Output Voltage 1.6 V | ||
Minimum Input Voltage 1.8 V | ||
Output Type Selectable | ||
Number of Outputs 1 | ||
Pin Count 12 | ||
Package Type TQFN-12 | ||
The STMicroelectronics nano-quiescent miniaturized synchronous step-down converter, which is able to provide up to 400 mA output current with an input voltage ranging from 1.8 V to 5.5 V. This converter is specifically designed for applications where high efficiency, PCB size and thickness are the key factors.
500 nA input quiescent current at VIN = 3.6 V (not switching)
92% typical efficiency at 10 mA load (VIN = 3.6 V, VOUT = 2.5 V)
100% duty cycle
1.8 V to 5.5 V input operating range
Undervoltage lockout 1.57 V (VIN falling, typ.)
Up to 400 mA output current capability
Low power control operation for the best efficiency
Embedded soft-start circuit
Tiny external components: L = 2.2 μH typ.
Selectable output voltages 1.6 V to 3.3 V
Output voltage power good
±1.5% output voltage accuracy (VOUT, TA = 25 °C)
Dynamic output voltage selection (D0, D1 and D2)
Load switch controlled by AUX input
Available in TQFN12 package
92% typical efficiency at 10 mA load (VIN = 3.6 V, VOUT = 2.5 V)
100% duty cycle
1.8 V to 5.5 V input operating range
Undervoltage lockout 1.57 V (VIN falling, typ.)
Up to 400 mA output current capability
Low power control operation for the best efficiency
Embedded soft-start circuit
Tiny external components: L = 2.2 μH typ.
Selectable output voltages 1.6 V to 3.3 V
Output voltage power good
±1.5% output voltage accuracy (VOUT, TA = 25 °C)
Dynamic output voltage selection (D0, D1 and D2)
Load switch controlled by AUX input
Available in TQFN12 package