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TJ4519 fiches techniques PDF

HTC Korea - 600kHz 3A Step-Down Switching Regulator

Numéro de référence TJ4519
Description 600kHz 3A Step-Down Switching Regulator
Fabricant HTC Korea 
Logo HTC Korea 





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TJ4519 fiche technique
600kHz 3A Step-Down Switching Regulator
TJ4519
FEATURES
z Integrated 3 Amp switch
z 600kHz frequency of operation
z Current mode controller
z Precision enable threshold
z Available in SOP8-PP Package
SOP8-PP PKG
APPLICATION
z XDSL Modems
z CPE equipment
z DC-DC point of load applications
z Portable equipment
ORDERING INFORMATION
Device (Marking)
TJ4519DP
Package
SOP8-PP
DESCRIPSION
The TJ4519 is a current mode switching regulator with an integrated switch, operating at 600kHz with enable
functions. The integrated switch allows for cost effective low power solutions (peak switch current 3 amps).
High frequency of operation allows for very small passive components. Current mode operation allows for fast
dynamic response and instantaneous duty cycle adjustment as the input varies (ideal for CPE applications
where the input is a wall plug power). The low shutdown current makes it ideal for portable applications where
battery life is important.
Absolute Maximum Ratings
CHARACTERISTIC
SYMBOL
MIN.
MAX.
Input Supply Voltage
VIN -0.3 28
Boost Pin Above VSW
VBST - VSW
-
16
Boost Pin Voltage
VBST
-0.3 32
EN Pin Voltage
VEN -0.3 24
FB Pin Voltage
VFB -0.3 6
FB Pin Current
IFB - 1
Operating Ambient Temperature Range
TA -40 85
Operating Junction Temperature Range
TJ -40 150
Storage Temperature Range
TSTG
-65 150
Lead Temperature (Soldering) 5 sec
TSOL
- 260
(1) For proper operation of device, VIN should be within Max. Operating Input Voltage as defined in Electrical Characteristics.
UNIT
V
V
V
V
V
mA
Ordering Information
Order No.
Package
TJ4519DP-8L
SOP8-PP
Description
600kHz 3A Step-Down Regulator
Package Marking Supplied As
TJ4519
Reel
Jul. 2010 – Preliminary
-1-
HTC
Free Datasheet http://www.datasheet4u.com/

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