Product Summary

The KA3525A is a monolithic integrated circuit that Included 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 ±1% Reference; (2)Oscillator Sync Terminal; (3)Internal Soft Start; (4)Deadtime Control; (5)Under-Voltage Lockout.

Diagrams

KA3525A test circuit

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
KA350TU
KA350TU
Fairchild Semiconductor
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Data Sheet
Negotiable 
KA3511DS
KA3511DS
Fairchild Semiconductor
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Data Sheet
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KA3524
KA3524
Fairchild Semiconductor
DC/DC Switching Controllers SMPS Controller
Data Sheet
Negotiable 
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
KA358
KA358
Fairchild Semiconductor
Operational Amplifiers - Op Amps Dual Op Amp 3-32V 2mA; 84dB
Data Sheet
0-1: $0.32
1-25: $0.17
25-100: $0.17
100-250: $0.14
KA358ADTF
KA358ADTF
Fairchild Semiconductor
Operational Amplifiers - Op Amps Dual OP amp
Data Sheet
0-1: $0.36
1-25: $0.23
25-100: $0.20
100-250: $0.16