HL7547

HL7547 is a synchronous buck converter optimized to supply different sub systems of portable applications. Its input voltage range is 2.3V to 5.5V.HL7547 can deliver up to 1A with high efficiency, while maintaining over 92% efficiency at load currents as low as 1mA. It operates at a high frequency of 1.5MHz, which greatly reduces the value of the external components. A wide range of output capacitors can be used to optimize VOUT stability during load transients. Inductors 2.2μH may be used without affecting loop stability. At moderate to light loads, Pulse Frequency Modulation (PFM) is used to maintain conversion efficiency with a typical non-switching quiescent current of 3.3uA, even with such a low quiescent current, HL7547 maintains excellent load and line transient responses. At higher loads, the system automatically switches to fixed frequency Pulse Width Modulation (PWM) operation for minimum VOUT ripple and optimal load transient response. In Shutdown Mode, the supply current drops below 0.2uA, reducing power consumption. The HL7547 is available in a 1.54mm x 0.77mm WLCSP-8 package.

Product Brief Datasheet

View product data

Features
parameter
Application
Related

- Commodity name: HL7547
- 产品名称: 1A Synchronous Step-Down Converter
- 产品简介: HL7547 is a synchronous buck converter optimized to supply different sub systems of portable applications. Its input voltage range is 2.3V to 5.5V.HL7547 can deliver up to 1A with high efficiency, while maintaining over 92% efficiency at load currents as low as 1mA. It operates at a high frequency of 1.5MHz, which greatly reduces the value of the external components. A wide range of output capacitors can be used to optimize VOUT stability during load transients. Inductors 2.2μH may be used without affecting loop stability. At moderate to light loads, Pulse Frequency Modulation (PFM) is used to maintain conversion efficiency with a typical non-switching quiescent current of 3.3uA, even with such a low quiescent current, HL7547 maintains excellent load and line transient responses. At higher loads, the system automatically switches to fixed frequency Pulse Width Modulation (PWM) operation for minimum VOUT ripple and optimal load transient response. In Shutdown Mode, the supply current drops below 0.2uA, reducing power consumption. The HL7547 is available in a 1.54mm x 0.77mm WLCSP-8 package.
- 3.3-μA Operating quiescent current
- Up to 1.5-MHz switching frequency
- 1% Output voltage accuracy
- DVS output from 0.3V to 1.3V (10mV steps)
- VSEL-pin to toggle VOUT during operation
- I2C interface (HL7547WL01/02)
- Power good indication (HL7547WL03/04)
- Tiny 8-pin, 0.35 mm Pitch WCSP package
- Comprehensive Protections
  - Input Under-Voltage Lockout (UVLO)
  - Over-Current Protection
  - Short-Circuit Protection
  - Thermal Shut-down
- 1.54mm x 0.77mm 8Bump WLCSP Package
- Subtitle
  - Subtitle
- Wearables
- Fitness Trackers
- Smart Watches

Company WeChat Official Account

中企跨境-全域组件 2.0 制作前进入CSS配置样式

CSS / JS 文件放置地

HL7547

Message