onsemi CAT4238TD-GT3

LED Driver; boost; CH:1; 1MHz; 450mA; PWM dimming; 2.8-5.5V; -40+150 deg.C; SMD; SOT23-5

CAT4238 Series 20 mA 5.5 V 1.3 MHz 10 LED Boost Converter LED Driver - SOT-23-5

Tape & Reel (TR) CAT4238 Step-Up (Boost) Analog PWM led driver 2.9mm 600mA Switch 5.5V 1MHz

38V 1MHz 1 boost converter DC-DCVoltage Stabilizer 600mA 2.8V~5.5V TSOT-23-5 LED Drivers ROHS

LED Driver 10 Segment 1500uA Supply Current 5-Pin TSOT-23 T/R / IC LED DRIVER RGLTR DIM TSOT23-5

CAT4238TD-GT3 LED DRIVER IC, 2 - 5.5 V DC 100MA 5-PIN SOT-23

ON SEMICONDUCTOR - CAT4238TD-GT3 - LED Driver, Boost (Step Up), 2-5.5V input, 1 Output, 1 MHz switch-freq., 38V/450 mA out, TSOT-23-5

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

Topology = Step-Up / Outputs = 1 / Switching Frequency MHz = 1 / Input Voltage Min. V = 2 / Input Voltage Max. V = 5.5 / Output Current mA = 40 / Output Voltage V = 38 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 150 / Package Type = TSOT-23 / Pins = 5 / Mounting Type = SMD / MSL = Level-1 / Packaging = Tape & Reel / Length mm = 2.9 / Width mm = 1.6 / Height mm = 0.9 / Reflow Temperature Max. °C = 260

The CAT4238 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor R1. LED currents up to 40mA can be supported over a wide range of input supply voltages up to 5.5V making the device ideal for battery-powered applications. The CAT4238 high-voltage output stage is perfect for driving mid-size and large panel displays containing up to ten white LEDs in series. LED dimming can be done by using a DC voltage a logic signal or a pulse width modulation (PWM) signal. The shutdown input 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.