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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.
主な特徴
- Step-down current mode PWM regulator
- Output voltage adjustable from 0.8 V
- Input voltage from 2.5 V up to 18 V
- 2% DC output voltage tolerance
- Synchronous rectification
- Inhibit function
- Synchronizable switching frequency from 400 kHz up to 1.2 MHz
- Internal soft start
- Dynamic short-circuit protection
- Typical efficiency: 90%
- 3 A output current capability
- Standby supply current: max. 6 μA over temperature range
- Operative junction temp.: from -40 °C to 125 °C
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サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 製品ステータス | 概算価格（USS） | 数量 | ECCN (US) | Country of Origin | 販売代理店からオーダー | STからオーダー |
|---|---|---|---|---|---|---|---|---|---|
| ST1S10PHR | PowerSO-8 | Tape And Reel |
Active
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0.693 | 10000 | EAR99 | CHINA | 在庫チェック | Get sample |
| ST1S10PUR | DFN8 4x4 | Tape And Reel |
Active
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0.693 | 10000 | EAR99 | MALAYSIA | 在庫チェック | Get sample |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
ビデオ
評価ツール
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写真 品名 製造元 概要 
STEVAL-ISA044V5 -- 3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (Power SO-8) 
STEVAL-ISA044V6 -- 3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (DFN) 製品型番3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (Power SO-8)
3 A synchronous 900 kHz step-down DC-DC converter with inhibit function based on the ST1S10 (DFN)
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| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| ST1S10PHR |
Active
|
PowerSO-8 | インダストリアル | Ecopack2 | |
| ST1S10PUR |
Active
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DFN8 4x4 | インダストリアル | Ecopack2 |
(**) 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.
