Product Summary

The IR3843AMTRPBF is an easy-to-use, fully integrated and highly efficient DC/DC synchronous Buck regulator. The IR3843AMTRPBF is a versatile regulator which offers programmability of start up time, switching frequency and current limit while operating in wide input and output voltage range.

Parametrics

IR3843AMTRPBF absolute maximum ratings: (1)Vin: -0.3V to 25V; (2)Vcc: -0.3V to 8V; (3)Boot: -0.3V to 33V; (4)SW: -0.3V to 25V(DC), -4V to 25V(AC, 100ns); (5)Boot to SW: -0.3V to Vcc+0.3V; (6)OCSet: -0.3V to 30V, 30mA; (7)Input / output Pins: -0.3V to Vcc+0.3V; (8)PGND to GND: -0.3V to +0.3V; (9)Storage Temperature Range: -55℃ to 150℃; (10)Junction Temperature Range: -40℃ to 150℃; (11)ESD Classification: JEDEC Class 1C; (12)Moisture sensitivity level: JEDEC Level 3@260℃.

Features

IR3843AMTRPBF features: (1)Wide Input Voltage Range 1.5V to 21V; (2)Wide Output Voltage Range 0.7V to 0.9*Vin; (3)Continuous 3A Load Capability; (4)Integrated Bootstrap-diode; (5)High Bandwidth E/A for excellent transient performance; (6)Programmable Switching Frequency up to 1.2MHz; (7)Programmable Over Current Protection; (8)PGood output; (9)Hiccup Current Limit; (10)Precision Reference Voltage (0.7V, +/-1%); (11)Programmable Soft-Start.

Diagrams

IR3843AMTRPBF package dimensions

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
IR3843AMTRPBF
IR3843AMTRPBF
International Rectifier
DC/DC Switching Regulators 3A SupIRBuck Reg 250-1200kHz, 1.5-21V
Data Sheet
0-3000: $0.88
3000-4000: $0.88
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
IR3800AM
IR3800AM
Other

Data Sheet
Negotiable 
IR3801AM
IR3801AM
Other

Data Sheet
Negotiable 
IR3802AM
IR3802AM
Other

Data Sheet
Negotiable 
IR3802M
IR3802M
Other

Data Sheet
Negotiable 
IR3812MTR1PBF
IR3812MTR1PBF
International Rectifier
DC/DC Switching Regulators 4A SupIRBuck Reg 600kHz, 2.5-21V in
Data Sheet
0-590: $0.93
590-750: $0.93
IR3810MPbF
IR3810MPbF
Other

Data Sheet
Negotiable