FSP3601 Datasheet, PDF (1/14 Pages) FOSLINK SEMICONDUCTOR CO.,LTD – STEP-UP DC/DC CONTROLLER

„ FEATURES
z Wide supply voltage operating range: 1.8 to 15V
z Reference voltage precision: 4%
z Low current consumption:
Operation Mode 5.5mA
Standby Mode: 1µA
z High speed oscillator frequency: 1MHz max
z Programmable Soft Start function (SS)
z Short Circuit Protection function (SCP)
z Totem-pole output with adjustable on/off current
(for NPN transistors or n-channel MOSFET)
z Logic level control stand-by mode function
z Package: SOP8/MSOP8/TSSOP8
„ TYPICAL APPLICATION
z Digital Camera
z PDA
z Portable Equipment
STEP-UP DC/DC CONTROLLER
FSP3601
„ 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.
„ PIN ASSIGNMENT
SOP8
MSOP8
TSSOP8
FB 1
SCP 2
Vcc 3
BR/CTL 4
8 COMP
7 OSC
FSP3601
6 GND
5 OUT
FB 1
SCP 2
Vcc 3
BR/CTL 4
FSP3601
8 COMP
FB 1
7 OSC
SCP 2
6 GND
Vcc 3
5 OUT
BR/CTL 4
FSP3601
8 COMP
7 OSC
6 GND
5 OUT
„ PIN DESCRIPTION
Name
No.
FB
1
SCP
2
V_CC
3
BR/CTL
4
OUT
5
GND
6
OSC
7
COMP
8
I/O
Description
I
Error amplifier inverting input pin
I
Connected a capacitor
Soft start and SCP function pin
P
IC Power supply
I
Output current setting and control pin
O
Totem-pole output
P
IC ground
I
Capacitor and resistor connected for the frequency of oscillation
O
Error amplifier compensation output
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2007-6-6