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LM2567M Datasheet

  • LM2567M

  • National Semiconductor [LAN DC/DC Converter]

  • NSC

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LM2567 LAN DC DC Converter
November 1992
LM2567
LAN DC DC Converter
General Description
The LM2567 DC DC converter is intended for use in LAN
applications as a power supply for the DP8392 Coaxial
Transceiver The converter may be operated from an input
voltage of 5V (
g
10%) to 15V It provides an isolated output
of
b
9V for loads of up to 180 mA with an efficiency of 78%
(typical) The few external components required for the con-
verter are completely specified within this datasheet
Protection features for the LM2567-based DC DC converter
include thermal and current limit Undervoltage lockout and
soft-start are incorporated to minimize the inrush current
during start-up
Features
Y
Y
Y
Y
Y
Y
Y
Wide input voltage range 5V to 15V
Tight line regulation 0 5% (typ)
Output voltage tolerance
g
5%
Few external components required
Surface-mount packaging
Fixed switching frequency of 52 kHz
Current-mode operation for improved transient re-
sponse
Typical Applications
Y
Power supply for DP8392 (LAN) coaxial transceiver
Isolated
b
9V output for up to 180 mA load
Typical Application
DC-to-DC Converter for DP8392 Coaxial Transceiver
TL H 11731 鈥?1
Connection Diagram and Ordering Information
24-Lead Surface Mount (M)
Order Number LM2567M
See NS Package Number M24B
TL H 11731 鈥?2
No internal connection
Top View
C
1995 National Semiconductor Corporation
TL H 11731
RRD-B30M115 Printed in U S A

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