ST1S03PUR
ActiveDC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 5 V TO 800 MV, 1.5 A, 1.5 MH… MORE
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ST1S03PUR
ActiveDC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 5 V TO 800 MV, 1.5 A, 1.5 MH… MORE
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | ST1S03PUR |
|---|---|
| Current - Output | 1.5 A |
| Frequency - Switching | 1.5 MHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 6-VDFN Exposed Pad |
| Supplier Device Package | 6-DFN (3x3) |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 16 V |
| Voltage - Input (Min) [Min] | 3 V |
| Voltage - Output (Max) [Max] | 13.92 V |
| Voltage - Output (Min/Fixed) | 0.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.58 | |
| 10 | $ 1.16 | |||
| 25 | $ 1.05 | |||
| 100 | $ 0.93 | |||
| 250 | $ 0.88 | |||
| 500 | $ 0.84 | |||
| 1000 | $ 0.82 | |||
| Digi-Reel® | 1 | $ 1.58 | ||
| 10 | $ 1.16 | |||
| 25 | $ 1.05 | |||
| 100 | $ 0.93 | |||
| 250 | $ 0.88 | |||
| 500 | $ 0.84 | |||
| 1000 | $ 0.82 | |||
| Tape & Reel (TR) | 3000 | $ 0.70 | ||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 1.58 | |
| 10 | $ 1.16 | |||
| 25 | $ 1.05 | |||
| 50 | $ 0.99 | |||
| 100 | $ 0.93 | |||
| 250 | $ 0.88 | |||
| 500 | $ 0.84 | |||
| 1000 | $ 0.82 | |||
Description
General part information
ST1S03 Series
The ST1S03 is a step-down DC-DC converter optimized for powering a low voltage digital core in HDD 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 1.5 A over an input voltage range of 3 V to 16 V. A high switching frequency (1.5 MHz) allows the use of tiny surface-mount components: as well as the resistor divider to set the output voltage value, only an inductor, a Schottky diode and two capacitors are required. Besides, 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 thermal protected and current limited to prevent damages due to an accidental short-circuit. The ST1S03 device is available in a DFN6D package.
Documents
Technical documentation and resources