ST1S14 Up to 3 A step down switching regulator
The ST1S14 is a step down monolithic power switching regulator able to delivers up to 3 A DC current to the load depending on the application conditions. The high current level is also achieved thanks to an 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 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 persistent short circuit condition.
技术特性
- 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 typical RDS(on)
- Thermal shutdown
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功能框图
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ST1S14 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| ST1S14PHR |
Active |
|
1000 |
PowerSO-8 |
Tape And Reel |
|
ST1S14PHR |
DATASHEET
| 描述 |
版本 |
大小 |
| ST1S14 : Up to 3 A step down switching regulator |
1 |
2207KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM1478: STEVAL-IFN003V1: DC PMSM FOC motor drive based on the L6230 and STM32 |
1 |
1177KB |
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISA104V1 |
Up to 3 A step-down switching regulator (Vin = 5.5 V to 48 V) based on the ST1S14 |
