Product Summary

The IR3637STRPBF controller IC is designed to provide a simple synchronous Buck regulator for on-board DC to DC applicationsn in a small 8-pin SOIC. The output voltage can be precisely regulated using the internal 0.8V reference voltage for low voltage applications. The IR3637STRPBF operates at a fixed internal 400kHz switching frequency to reduce the component size. The device features under-voltage lockout for both input supplies, an external programmable soft-start function as well as output under-voltage detection that latches off the device when an output short is detected.

Parametrics

Absolute maximum ratings: (1)Vcc Supply Voltage: 16V; (2)Vc Supply Voltage: 25V; (3)Storage Temperature Range: -65℃ To 150℃; (4)Operating Junction Temperature Range: 0℃ To 125℃; (5)ESD Classification: HMB Class 2 (2KV) JEDEC Standard; (6)Moisture Sensitivity Level: JEDEC Level 1 @ 260℃.

Features

Features: (1)0.8V Reference Voltage; (2)Operates with a single 5V Supply Voltage; (3)Internal 400kHz Oscillator; (4)Soft-Start Function; (5)Fixed Frequency Voltage Mode; (6)Short Circuit Protection.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
IR3637STRPBF
IR3637STRPBF
International Rectifier
Switching Converters, Regulators & Controllers
Data Sheet
0-1780: $0.49
1780-2500: $0.49
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
IR3621
IR3621
Other

Data Sheet
Negotiable 
IR3621F
IR3621F

IC REG CTRLR BUCK PWM VM 28TSSOP
Data Sheet
0-200: $1.42
IR3621FTR
IR3621FTR

IC REG CTRLR BUCK PWM VM 28TSSOP
Data Sheet
0-1: $2.60
1-10: $1.78
10-25: $1.60
25-50: $1.50
50-100: $1.41
100-250: $1.32
250-500: $1.27
500-1000: $1.22
IR3621FTRPBF
IR3621FTRPBF
International Rectifier
DC/DC Switching Controllers
Data Sheet
0-1880: $1.00
1880-2500: $1.00
IR3621M
IR3621M

IC REG CTRLR BUCK PWM VM 32MLPQ
Data Sheet
0-219: $1.42
IR3621MPBF
IR3621MPBF

IC REG CTRLR BUCK PWM VM 32MLPQ
Data Sheet
Negotiable