Product Summary

The CAT4237TD-GT3 is a DC/DC step up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a constant switching frequency of 1 MHz allows the device to be used with small value external ceramic capacitors and inductor.

Parametrics

CAT4237TD-GT3 absolute maixmum ratings: (1)VIN, FB voltage: -0.3 to +7 V; (2)SHDN voltage: -0.3 to +7 V; (3)SW voltage: -0.3 to +55 V; (4)Storage Temperature Range: -65℃ to +160℃; (5)Junction Temperature Range: -40℃ to +150℃; (6)Lead Temperature: 300℃.

Features

CAT4237TD-GT3 features: (1)Drives 6 to 8 White LEDs in Series from 3 V; (2)Up to 87% Efficiency; (3)Low Quiescent Ground Current 0.6 mA; (4)Adjustable Output Current (up to 40 mA); (5)High Frequency 1 MHz Operation; (6)High Voltage Power Switch; (7)Shutdown Current Less than 1 μA; (8)Open LED Low Power Mode; (9)Automatic Shutdown at 1.9 V (UVLO); (10)Thermal Shutdown Protection; (11)Thin SOT23 5-lead (1 mm Max Height); (12)Pb-Free, Halogen Free/BFR Free and RoHS Compliant.

Diagrams

CAT4237TD-GT3 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
CAT4237TD-GT3
CAT4237TD-GT3
ON Semiconductor
LED Lighting Drivers LED Driver,Boost 8 LED,series
Data Sheet
0-1: $0.86
1-25: $0.69
25-100: $0.60
100-250: $0.53
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
CAT4002ASD-GT3
CAT4002ASD-GT3
ON Semiconductor
LED Lighting Drivers LED DR 2 CH EZ DIM I/F
Data Sheet
0-1950: $0.22
1950-2000: $0.20
2000-3000: $0.20
3000-5000: $0.19
CAT4002ATD-GT3
CAT4002ATD-GT3
ON Semiconductor
LED Lighting Drivers LED DR 2 CH EZ DIM I/F
Data Sheet
0-1: $0.50
1-25: $0.40
25-100: $0.35
100-250: $0.30
CAT4002BSD-GT3
CAT4002BSD-GT3
ON Semiconductor
LED Lighting Drivers LED DR 2 CH EZ DIM I/F
Data Sheet
0-1950: $0.21
1950-2000: $0.19
2000-3000: $0.19
3000-5000: $0.18
CAT4002BTD-GT3
CAT4002BTD-GT3
ON Semiconductor
LED Lighting Drivers LED DR 2 CH EZ DIM I/
Data Sheet
0-1750: $0.23
1750-2000: $0.21
2000-3000: $0.21
3000-5000: $0.19
CAT4003BTD-GT3
CAT4003BTD-GT3
ON Semiconductor
LED Lighting Drivers LED DR 3 CH EZ DIM I/
Data Sheet
0-1: $0.54
1-25: $0.43
25-100: $0.38
100-250: $0.33
CAT4004AHU2-GT3
CAT4004AHU2-GT3
ON Semiconductor
LED Lighting Drivers LED DR 4 CH EZ DIM I/F
Data Sheet
0-1: $0.65
1-25: $0.52
25-100: $0.45
100-250: $0.40