HL7603
2.5MHz Synchronous Boost Converter with Bypass Mode
Overview
The HL7603 provides a power supply solution for products powered by Li-Ion Battery, Silicon Anode Battery or LiFePO4 Battery. By combining built-in power transistors, synchronous rectifier, and low supply current, this IC is optimized for single-cell portable applications like in mobile devices, tablet PCs, wearable devices or accessories.
The HL7603 is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum requirement. This extends the battery run-time and overcomes input current and voltage limitations of the powered system. The output voltage regulation is guaranteed up to a maximum load current of 4A in continue and 5A in peak(<10mS). The regulator can transit smoothly between Bypass Mode and normal Boost Mode and also can work under Forced Bypass Mode for minimizing quiescent current.
The HL7603 is available in a 16-bump, 0.4mm pitch, Wafer-Level Chip-Scale Package (WLCSP).
For more detailed description of the device, please download a product brief.
Features
- Input Voltage Range: 2.3V~5.5V
- Output Voltage Range:
- Adjustable by I2C: 2.85V to 5.5V
- Low IQ operating current:
- 15uA IQ under Low IQ Forced Bypass Mode
- 20uA IQ under Normal Forced Bypass Mode
- 35uA IQ under Auto PFM Mode
- Maximum Output Current:
- Continuous 4A with 2.7V to 3.6V
- Peak 5A@10mS with 2.7V to 3.6V
- 5MHz Operation Frequency with Seamless PWM/PFM Transition
- Bypass Mode Rdson: 10mohm@TYP
- Optional Auto Bypass Mode and Forced Bypass Mode
- Optional Forced PWM Mode and Auto PFM Mode for Boost Operating Mode
Block Diagram
For more information or a full datasheet request, please contact the factory at sales@hmisemi.com.