STEP-UP DC/DC CONTROLLER
FSP3601
FEATURES
Wide supply voltage operating range: 1.8 to 15V
Reference voltage precision: 4%
Low current consumption:
Operation Mode 5.5mA
Standby 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
GENERAL DESCRIPTION
The FSP3601 is a boost topology switching regulator
control IC for battery-used applications field. The
FSP3601 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.
TYPICAL APPLICATION
Digital Camera
PDA
Portable Equipment
PIN ASSIGNMENT
SOP8
MSOP8
TSSOP8
FB
SCP
Vcc
BR/CTL
1
2
3
4
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
COMP
OSC
GND
OUT
FSP3601
6
5
FSP3601
7
6
5
FSP3601
7
6
5
BR/CTL 4
PIN DESCRIPTION
Name
FB
SCP
V
CC
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
Output current setting and control pin
Totem-pole output
IC ground
Capacitor and resistor connected for the frequency of oscillation
Error amplifier compensation output
1/14
2007-6-6
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
