LV5256GP Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – Bi-CMOS LSI Operating Mode Switching Type Step-Up/Down Converter

Ordering number : ENA1277
LV5256GP
Bi-CMOS LSI
Operating Mode Switching Type
Step-Up/Down Converter
Overview
The LV5256GP is an operating mode switching type step-up/step-down converter that can switch the operating mode by
using the external signal.
Functions
• Built-in Pch gate drive power supply
• Output short-circuit detection by monitoring the input side of the error amplifier
• OCP timer function
• Software start function
• Support for tracking function
• Built-in thermal protection circuit
• Built-in UVLO
• ON/OFF function: Off-time input current smaller than 1µA
• Oscillation frequency : 300kHz to 1.5MHz Oscillation frequency can be set by an external resistor
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum input voltage
Maximum output voltage
Maximum output current
Allowable input pin voltage
Allowable power dissipation
Symbol
VIN max
VDD max
VO max
IO max
VCONT max
Pd max
Conditions
Between OUT and SW
RT, FB, IN, OCP, SS, ONOFF, TRAC_IN,
DU_SEL, OPC_SEL pins
Mounted on a specified board *
Operating temperature
Topr
Storage temperature
Tstg
* Specified board : 50mm × 40mm × 0.8mm, glass epoxy 4-layer circuit board (2S2P).
Ratings
Unit
12
V
3.6
V
16
V
650
mA
VDD
V
0.8
W
-20 to +85
°C
-40 to +125
°C
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
21209 MS PC 20080722-S00003 No.A1277-1/9