1ch DC/DC boost converter
Ordering number : ENA2145
LV56351HA
Bi-CMOS IC
1ch DC/DC boost converter
http://onsemi.com
Overview
LV56351HA integra...
Description
Ordering number : ENA2145
LV56351HA
Bi-CMOS IC
1ch DC/DC boost converter
http://onsemi.com
Overview
LV56351HA integrates 1ch DC/DC boost converter and 1ch LDO. It is suitable as the power supply for BS/CS antennas of LCD/PDP TV and BD recorders that require automatic recovery without IC destruction and malfunction when the output is short-circuited.
Functions
[DC/DC boost converter] Soft-start time: 2.8ms Frequency 425kHz operation Pulse by pulse over current limiter Short circuit protector (SCP)
[LDO] Over current limiter (Fold back) [All] Under voltage lockout Thermal shutdown protector Power good
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
VCC maximum supply voltage LDOIN maximum input voltage SW maximum voltage Allowable power dissipation
VCC max VLDOIN max VSW max Pd max
*1
-0.3 to 25 -0.3 to 30 -0.3 to 30
1.45
V V V W
Operating temperature
Topr
-30 to +85
°C
Operating junction temperature Tjopr
-30 to +125
°C
Storage temperature
Tstg
-40 to +150
°C
Allowable pin voltage
VCC, EN SW, LDOIN, LDOOUT
IN1, IN2, FB, SCP, PGOOD, DDCTL
25 V 30 V
6V
*1 Mounted on a specified board : 32mm × 38mm × 1.6mm, glass epoxy, double side board. Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
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