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 
IR3800AMTRPBF
IR3800AMTRPBF

International Rectifier

DC/DC Switching Regulators 14A SupIRBuck Reg 300kHz, 2.5-21V in

Data Sheet

0-2590: $1.48
2590-4000: $1.48
IR3800MTR1PBF
IR3800MTR1PBF

International Rectifier

DC/DC Switching Regulators 12A SupIRBuck Reg 600kHz, 2.5-21V in

Data Sheet

0-580: $1.26
580-750: $1.26
IR3800MTRPBF
IR3800MTRPBF

International Rectifier

DC/DC Switching Regulators 12A SupIRBuck Reg 600kHz, 2.5-21V in

Data Sheet

0-2595: $1.50
2595-4000: $1.50
IR3801AM
IR3801AM

Other


Data Sheet

Negotiable 
IR3801AMTRPBF
IR3801AMTRPBF

International Rectifier

DC/DC Switching Regulators 9A SupIRBuck Reg 300kHz, 2.5-21V in

Data Sheet

0-2600: $1.06
2600-4000: $1.06