Product Summary

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

Parametrics

KA3525A absolute maximum ratings: (1)supply voltage: 40V; (2)collector supply voltage: 40V; (3)output current: 500mA; (4)oscillator charging current: 5mA; (5)power dissipation: 1000m/W; (6)operating temperature: 0 to 70℃; (7)storage temperature: -65 to 150℃; (8)lead temperature: 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 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
KA3502
KA3502
Fairchild Semiconductor
Supervisory Circuits
Data Sheet
Negotiable 
KA350TU
KA350TU
Fairchild Semiconductor
Linear Regulators - Standard 3a Pos Voltage Reg 3Term adjustable
Data Sheet
Negotiable 
KA3511BS
KA3511BS
Other

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