XL7056 Converter Datasheet

XL7056 Datasheet, PDF, Equivalent


Part Number

XL7056

Description

2.1A 100KHz 90V Buck DC to DC Converter

Manufacture

Xlsemi

Total Page 11 Pages
Datasheet
Download XL7056 Datasheet


XL7056
XLSEMI
2.1A 100KHz 90V Buck DC to DC Converter
Datasheet
XL7056
Features
„ Operation Voltage from 8V to 80V
„ Maximum Duty Cycle up to 85%
„ Minimum Drop Out 2.0V
„ Adjust VOUT from 1.25V to 20V
„ Max. IOUT=2.1A at VOUT=5V
„ Max. IOUT=1.2A at VOUT=15V
„ Fixed 100KHz Switching Frequency
„ Max. Output power less than 20W
„ Internal Optimize HV Power MOSFET
„ High efficiency up to 93%
„ Excellent line and load regulation
„ Built in current limit function
„ Built in output short Protection Function
„ TO263-7L package
General Description
The XL7056 is a 100KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 2.1A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 85%.
Applications
„ Ebike Controller Power Supply
„ Telecom / Networking Equipment
Figure1. Package Type of XL7056
Rev 1.2
www.xlsemi.com
1

XL7056
XLSEMI
2.1A 100KHz 90V Buck DC to DC Converter
Pin Configurations
Datasheet
XL7056
Figure2. Pin Configuration of XL7056 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5
6
7
Pin Name
GND
FB
CSN
SW
CSP
VC
VIN
Description
Ground Pin. Care must be taken in layout. This pin should be
placed outside of the Schottky Diode to output capacitor ground
path to prevent switching current spikes from inducing voltage
noise into XL7056.
Feedback Pin (FB). Through an external resistor divider
network, Feedback senses the output voltage and regulates it.
The feedback threshold voltage is 1.25V.
Current Sense Negative Terminal.
Power Switch Output Pin (SW). Output is the switch node that
supplies power to the output. The Metal is SW.
Current Sense Positive Terminal.
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uF capacitor to VIN.
Supply Voltage Input Pin. XL7056 operates from 8V to 80V DC
voltage. Bypass Vin to GND with a suitably large capacitor to
eliminate noise on the input.
Rev 1.2
www.xlsemi.com
2


Features XLSEMI 2.1A 100KHz 90V Buck DC to DC Con verter Datasheet XL7056 Features „ O peration Voltage from 8V to 80V „ Maxi mum Duty Cycle up to 85% „ Minimum Dro p Out 2.0V „ Adjust VOUT from 1.25V to 20V „ Max. IOUT=2.1A at VOUT=5V „ Ma x. IOUT=1.2A at VOUT=15V „ Fixed 100KH z Switching Frequency „ Max. Output po wer less than 20W „ Internal Optimize HV Power MOSFET „ High efficiency up t o 93% „ Excellent line and load regula tion „ Built in current limit function „ Built in output short Protection Fu nction „ TO263-7L package General Des cription The XL7056 is a 100KHz fixed f requency PWM buck (step-down) DC/DC con verter, capable of driving a 2.1A load with high efficiency, low ripple and ex cellent line and load regulation. Requi ring a minimum number of external compo nents, the regulator is simple to use a nd include internal frequency compensat ion and a fixed-frequency oscillator. T he PWM control circuit is able to adjus t the duty ratio linearly from 0 to 85%. Applications „ Ebike Controller Pow.
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