The ST1S10 is a high efficiency step-down PWM current mode switching regulator capable of providing up to 3 A of output current. The device operates with an input supply range from 2.5 V to 18 V and provides an adjustable output voltage from 0.8 V (VFB) to 0.85 * VIN_SW[VOUT= VFB * (1 + R1/R2)]. It operates either at a 900 kHz fixed frequency or can be synchronized to an external clock (from 400 kHz to 1.2 MHz). The high switching frequency allows the use of tiny SMD external components, while the integrated synchronous rectifier eliminates the need for a Schottky diode. The ST1S10 provides excellent transient response, and is fully protected against thermal overheating, switching overcurrent and output short-circuit.
The ST1S10 is the ideal choice for point of load regulators or LDO pre-regulation.
|DS5438: 3 A, 900 kHz, monolithic synchronous step-down regulator IC||6.0||768 KB|
|AN2620: 3 A high-frequency synchronous 900 kHz step-down converter based on the ST1S10||3.1||1 MB|
|AN2754: Buck high-brightness LED driver based on the ST1S10 step-down DC-DC converter voltage regulator||1.0||302 KB|
|Brochure Power management guide||09.2017||3 MB|
|Part Number||Package||Packing Type||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|ST1S10PHR||PowerSO-8||Tape And Reel||Active : Product is in volume production||0.693||1000||NEC||EAR99||CHINA||MORE INFO||DISTRIBUTOR AVAILABILITY|
|ST1S10PUR||DFN8 4x4||Tape And Reel||Active : Product is in volume production||0.693||1000||NEC||EAR99||MALAYSIA||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.