XR4981
XR4981 is SYNCHRONOUS BOOST CONTROLLER manufactured by XySemi.
DESCRIPTION
XR4981 is a high efficiency synchronous boost controller that converts from 3V ~36V input range and up to 36V output voltage with an outside N-channel MOSFET for the synchronous switch.
The XR4981 includes adjustable current limit, adjustable soft-start, adjustable pensation net and thermal shutdown preventing damage in the event of an output overload.
For different application we can select suitable pensation net、current limit、 soft start and select suitable MOSFET to obtain a high efficiency。
FEATURES
- 3V~36V input voltage range
- Adjustable output voltage from 5V to
36V
- 1.21V VFB reference voltage
- Adjustable current limit
- Adjustable soft-start
- Adjustable pensation net
- Input under voltage lockout
- 400Khz fixed Switching Frequency
- Thermal Shutdown
- QFN3x3-16 Package
- Rohs pliant and Halogen Free
Xy Semi Inc
Figure 1. Typical Application Circuit1 -1-
.xysemi. Version 0.2
Figure 2. Typical Application Circuit2(Special for Single Li-Battery Input)
APPLICATIONS
- Power Bank
- QC 2.0 Device
- Type C USB Device
- Power Amplify Device
- Portable Class D Device
- 5V/9V/12V BUS Power Supply
Typical application for input and output:
Input Voltage(V)
Output Voltage(V) /Output Current(A)
3.3~4.35
5V/5A 9V/3A 12V/2A
14.8V/2A 20V/1.5A
9V/4A 12V/3A
14.8V/2A 20V/1.5A
6~8.4 12~16.8
9V/5A
12V/3A...
