feeling-tech FP5138
The FP5138 is a boost topology switching regulator control IC for battery-used applications field. The FP5138 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.| Part No. | FP5138 |
|---|---|
| Datasheet | FP5138 Download |
| Manufacturer |  feeling-tech |
| Description | BOOST CONVERT CONTROL IC |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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(EP) SOP8 TS S O P 8 TYPICAL APPLICATION ˙Digital Camera ˙PDA ˙Portable Equipment MS O P 8 Website: Rev0.6 August 17, 2006 P1/FP5138 Technology FUNCTIONAL BLOCK DIAGRAM 3 7 FP5138 Reference voltage supply 0.8V 0.1V Sawtooth wave oscillator 1.25V 1 + 0.5V 8 36kΩ 36 Error Amp. 500KΩ 0.1V PWM Comp. + + + DTC 0.6V Output drive control circuit 0.22V 5 30 Ω 30k Soft start & SCP circuit 6 2 4 MARK VIEW Name No. FB 1 SCP 2 3 4 5 6 7 8 PINDESCRIPTION
I/ODESCRIPTION
I Error amplifier inverting input pin Connected a capacitor I Soft...
