TD1609 반도체 회로 부품 판매점
1.6A 150KHz PWM Buck DC/DC Converter
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 Techcode |
T echcode®
1.6A
150KHz
PWM
Buck
DC/DC
Converter
DATASHEET
TD1609
General Description
Features
TD1609 is a monolithic asynchronous buck regulator. The
device provides 1.6A of continuous load current over a wide
input voltage of 6V to 40V. It uses current mode control to
regulator the output voltage and provides fast transient
response.
The TD1609 is equipped with an automatic PFM/PWM mode
operation. At light load, the IC operates in the PFM mode to
reduce the switching losses. At heavy load, the IC works in
PWM mode.
Hiccup mode current limit and thermal shutdown elements
for a full protection under fault conditions. Anti‐ring function
is to reduce the influence of EMI.
This device, available in a SOP‐8 package, provides a very
compact system solution with minimal reliance on external
components.
Internal P‐Channel MOSFET
1.6A continuous output current
Up to 90% efficiency
Integrated Power Save Mode Operation to Improve
Light Load Efficiency
Input voltage range: 6V to 40V
Fixed 150kHz frequency internal oscillator
Hiccup mode current limit
Anti‐ringing for lower EMI
Over temperature protection
SOP‐8 package
Applications
Simple high‐efficiency step‐down regulator
Efficient pre‐regulator for linear regulators
On‐card switching regulators
Positive to negative converter
Battery charger
Pin Configurations
Figure1 Pin Configuration of TD1609(Top View)
July, 25, 2014. Techcode Semiconductor Limited www.techcodesemi.com
1
T echcode®
1.6A
150KHz
PWM
Buck
DC/DC
Converter
Pin Description
DATASHEET
TD1609
Pin Number Pin Name Description
1
2
3
4
5,6,7,8
VIN
SW
FB
ON/OFF
GND
Power Input. In supplies the power to the IC, as well as the step‐down converter
switches. Drive IN with a 6V to 40V power source. Bypass IN to GND with a suitably
large capacitor to eliminate noise on the input to the IC. See Input Capacitor.
Power Switching Output. SW is the switching node that supplies power to the output.
Connect the output LC filter from SW to the output load.
Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a
resistive voltage divider from the output voltage. The feedback threshold is 1.23V.
Enable Input. ON/OFF is a digital input that turns the regulator on or off. Diver ON/OFF
low to turn on the regulator; drive it high to turn it off.
Ground.
Ordering Information
TD1609 □ □
Circuit Type Outputvoltage:
50: 5
R: ADJ
Package
P:SOP8
July, 25, 2014. Techcode Semiconductor Limited www.techcodesemi.com
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TD1609 converter
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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전력반도체 문의 : 010-3582-2743
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1.6A 150KHz PWM Buck DC/DC Converter - Techcode