JW5520S
JW5520S is Synchronous Step-up Boost Converter manufactured by JoulWatt Technology.
DESCRIPTION
The JW®5520S is a synchronous high-efficiency, boost converter with true output disconnection. The device adopts constant-off-time (COT) control topology.
The device can start up from an input voltage as low as 1.2V. The input switch peak current can be programmable up to 9A and the output average load current limit can be programmable by external resistors.
The typical operation frequency of JW5520S is 600k Hz, which allows smaller inductor and capacitors to achieve a small solution size.
During light load condition, PFM is engaged to maintain the maximum efficiency.
JW5520S guarantees robustness with output short circuit protection and thermal shutdown. pany’s Logo is Protected, “JW” and “JOULWATT” are Registered Trademarks of Joul Watt technology Inc.
FEATURES
- 1.2V Minimum Start-up Input Voltage
- 1.2V to 5.5V Input Voltage Range
- 2.5V to 5.5V Output Voltage Range
- Support 5V/3.5A Output from 2.8V Input
- Up to 9A Programmable Switch Peak Current
Limit
- Programmable Average Load Current Limit
- 600k Hz Pseudo-Constant Frequency
Switching
- Low Quiescent Current: <40u A
- High Efficiency over Full Load Range
- True Output Disconnection from Input
- Thermal Shutdown and Output Short Circuit
Protection
- Package: QFN2x2-14
APPLICATIONS
- Battery Powered Systems
- Power Banks, Juice Packs, Battery Back-Up
- Electronic Cigarettes
- Consumer Electronic Accessories
- USB Power Supplies
TYPICAL APPLICATION
VIN C1
RILIM
L1
ILIM GND
VO FB
SENS SOUT
RS VOUT R1 C2 R2
JW5520S Rev.0.12
Joul Watt® Proprietary Information. Patent Protected.
2021/11/30...
