OCP3601
Step-Up DC/DC Controller
General Description The OCP3601 is a boost topology switching regulator control IC f...
OCP3601
Step-Up DC/DC Controller
General Description The OCP3601 is a boost topology switching
regulator control IC for battery-used applications field. The OCP3601 includes a totem-pole single output stage for driving
NPN transistor or N-MOS, high precision reference (0.5V) for comparing output voltage with feedback amplifier, an internal dead-time control for controlling the minimum duty cycle, programmable soft start with short circuit protection function and logic level control for operating mode or standby mode.
Features
Wide supply voltage operating range: 1.8 to 15V Reference voltage precision: 4% Low current consumption: Operation Mode 5.5mA Standby-by Mode: 1μA High speed oscillator frequency: 1MHz max Programmable Soft Start function (SS) Short Circuit Protection function (SCP) Totem-pole output with adjustable on/off current (for
NPN transistors or n-channel MOSFET) Logic level control stand-by mode function Package: SOP8/MSOP8/TSSOP8
Typical Application
Digital Camera PDA Portable Equipment
Pin Assignment
SOP8 MSOP8 TSSOP8
FB 1 SCP 2
8 7
COMP OSC GND OUT
FB SCP Vcc BR/CTL
1 2 3 4
8
COMP OSC GND OUT
FB SCP Vcc
1 2 3
8 7
COMP OSC GND OUT
OCP3601
Vcc BR/CTL 3 4 6 5
OCP3601
7 6 5
OCP3601
6 5
BR/CTL 4
Pin Description
Name FB SCP VCC BR/CTL OUT GND OSC COMP No. 1 2 3 4 5 6 7 8 I/O I I P I O P I O Description Error amplifier inverting input pin Connected a capacitor Soft start and SCP function pin IC Power supply Ou...