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The ST1S14 is a step-down monolithic power switching regulator able to deliver up to 3 A DC current to the load depending on the application conditions. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the Rth(JA)down to approximately 40 °C/W. The output voltage can be set from 1.22 V. The device uses an internal N-channel DMOS transistor (with a typical RDS(on)of 200 mΩ) as the switching element to minimize the size of the external components. The internal oscillator fixes the switching frequency at 850 kHz. Power good open collector output validates the regulated output voltage as soon as it reaches the regulation. Pulse-by-pulse current limit offers an effective constant current short-circuit protection. Current foldback decreases overstress in a persistent short-circuit condition.
主要特性
- 3 A DC output current
- Operating input voltage from 5.5 V to 48 V
- 850 kHz internally fixed switching frequency
- Internal soft-start
- Power good open collector output
- Current mode architecture
- Embedded compensation network
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- 2 mA maximum quiescent current over temperature range
- 250 mΩ typ. RDS(on)
- Thermal shutdown
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产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 17 Oct 2020 |
17 Oct 2020
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技术文档 (1)
| Resource title | Latest update | |||
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| 29 Oct 2015 |
29 Oct 2015
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| Resource title | Latest update | |||
|---|---|---|---|---|
| 30 Jun 2020 |
30 Jun 2020
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| Resource title | Latest update | |||
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| 23 Mar 2020 |
23 Mar 2020
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样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| ST1S14PHR | 10 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | PowerSO-8 | - | - | PHILIPPINES | 0.761 / 1k | |
