CONTROL IC. FP5139 Datasheet

FP5139 IC. Datasheet pdf. Equivalent


Part FP5139
Description BOOST CONVERT CONTROL IC
Feature Technology FP5139 BOOST CONVERT CONTROL IC GENERAL DESCRIPTION The FP5139 is a boost topology swit.
Manufacture Feeling Technology
Datasheet
Download FP5139 Datasheet


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FP5139
Technology
FP5139
BOOST CONVERT CONTROL IC
GENERAL DESCRIPTION
The FP5139 is a boost topology switching regulator control IC for battery-used applications
field. The FP5139 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/TSSOP8/MSOP8
SOP8
TYPICAL APPLICATION
Digital Camera
PDA
Portable Equipment
Website: http://www.feeling-tech.com.tw
Rev0.2 Nov. 25, 2005
P1/FP5139



FP5139
Technology
FUNCTIONAL BLOCK DIAGRAM
37
FP5139
Reference
voltage supply
1.25V
0.6V
0.1V
1 36k
Error Amp.
0.5V
500
8
Sawtooth wave
oscillator
0.1V
PWM
Comp.
DTC 0.6V
Output drive
control circuit
0.22V
5
30k
Soft start SCP
62
4
MARK VIEW
PIN DESCRIPTION
Name No.
FB 1
SCP 2
VCC
BR/CTL
OUT
GND
3
4
5
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
Website: http://www.feeling-tech.com.tw
Rev0.2 Nov. 25, 2005
P2/FP5139







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