Product Summary

The KA3525A is a monolithic integrated circuit that includes all of the control circuit necessary for a pulse width modulating regulator. There are a voltage reference, an error amplifier, a pulse width modulator, an oscillator, under-voltage lockout, soft start circuit, and output drivers in the chip.

Parametrics

KA3525A absolute maximum ratings: (1)Supply Voltage VCC: 40 V; (2)Collector Supply Voltage VC: 40 V; (3)Output Current, Sink or Source IO: 500 mA; (4)Reference Output Current IREF: 50 mA; (5)Oscillator Charging Current ICHG(OSC): 5 mA; (6)Power Dissipation (TA = 25℃ PD: 1000 m/W; (7)Operating Temperature TOPR: 0 ~ +70℃; (8)Storage Temperature TSTG: -65 ~ +150℃; (9)Lead Temperature (Soldering, 10 sec) TLEAD: +300℃.

Features

KA3525A features: (1)5V % Reference; (2)Oscillator Sync Terminal; (3)Internal Soft Start; (4)Deadtime Control; (5)Under Voltage Lockout.

Diagrams

KA3525A block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
KA3525A
KA3525A

Fairchild Semiconductor

DC/DC Switching Controllers SMPS Controller

Data Sheet

0-1: $0.46
1-25: $0.41
25-100: $0.36
100-250: $0.31
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
KA350
KA350

Fairchild Semiconductor

Linear Regulators - Standard 3a Pos Voltage Reg 3Term adjustable

Data Sheet

Negotiable 
KA3501
KA3501

Fairchild Semiconductor

Supervisory Circuits Secondary Monitoring SMPS IC

Data Sheet

Negotiable 
KA3502
KA3502

Fairchild Semiconductor

Supervisory Circuits

Data Sheet

Negotiable 
KA3504
KA3504

Fairchild Semiconductor

Supervisory Circuits Supervisor IC SMPS

Data Sheet

Negotiable 
KA3505
KA3505

Fairchild Semiconductor

Supervisory Circuits PC SMPS Sup. IC

Data Sheet

Negotiable 
KA350TU
KA350TU

Fairchild Semiconductor

Linear Regulators - Standard 3a Pos Voltage Reg 3Term adjustable

Data Sheet

Negotiable