onsemi CAT4137TD-GT3

LED Driver 5 Segment 5-Pin TSOT-23 T/R / IC LED DRIVER RGLTR DIM TSOT23-5

CAT4137 Series White LEDs 3 V 0.1 mA Surface Mount LED Driver - TSOT-23-5

Tape & Reel (TR) CAT4137 Step-Up (Boost) Analog PWM led driver 2.9mm 30mA 5.5V 1MHz

CAT4137TD-GT3, LED DISPLAY DRIVER 5-SEGMENTS, 2.2 - 5.5 V, 5-PIN TSOT-23

IC, WHITE LED DRIVER, BOOST, TSOT-23-5;; IC, WHITE LED DRIVER, BOOST, TSOT-23-5; LED Driver Application:LCD Backlighting, Digital Cameras; Topology:Boost (Step Up); No. of Outputs:1; Output Current:30mA; Output Voltage:24V; Input Voltage:2.2V to 5.5V

LED Driver IC; Device Type:LED; Display Interface:7-segment numeric LED digits, bar graph, or discrete LEDs; Supply Voltage Min:2.2V; Supply Voltage Max:5.5V; Termination Type:SMD; Package/Case:5-TSOT-23; No. of Pins:5 ;RoHS Compliant: Yes

The CAT4137 is a DC/DC step-up converter that delivers a regulated output current. Operation at a constant switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. The device drives a string of white LEDs connected in series and provides the regulated current to control the LEDs with inherent uniform brightness and matching. An external resistor R1 sets the output current and allows up to 30mA current to be supported over a wide range of input supply voltages from 2.2V to 5.5V making the device ideal for battery-powered applications. LED dimming can be done by using a DC voltage a logic signal or a pulse width modulation (PWM) signal. The shutdown control pin allows the device to be placed in power-down mode with zero quiescent current. In addition to thermal protection and overload current limiting the device also enters a very low power operating mode during Open LED fault conditions. The device is housed in a low profile (1mm max height) 5-lead thin SOT23 package for space critical applications.