| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
42,000 pcs
|
42000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Current | |
| Dimming | |
| Frequency | |
| Halogen Free | |
| Internal Switch(s) | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Operating Voltage | |
| Quiescent Current | |
| Storage Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Tape & Reel | |
| Topology | |
| Type | |
| Voltage |
The CAT37TDI-GT3 from ON Semiconductor is a DC/DC step-up (boost) converter designed to drive multiple white light-emitting diodes (LEDs) in series. It operates at a constant switching frequency of 1.2 MHz, allowing for the use of small external inductors and ceramic capacitors. The device supports input supply voltages ranging from 2.5 V to 7 V, making it suitable for battery-powered applications.
The output current is adjustable up to 40 mA via an external resistor, providing regulated current for consistent brightness and color purity. It can drive up to 4 white LEDs in series, with series drive ensuring inherent current matching. LED dimming is supported through DC voltage, logic signal, or PWM signal. The device includes overcurrent limiting protection and protection against open-circuit load fault conditions.
Packaged in a low-profile, 1 mm height TSOT-23-5 package, the CAT37TDI-GT3 is ideal for space-constrained designs. Its features include low quiescent ground current (0.5 mA typical), power efficiency over 80%, and a shutdown current less than 1 µA. Applications include color LCD and keypad backlighting for cellular phones, handheld terminals, digital cameras, PDAs, and portable MP3 players.
This component is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is from 2.5 V to 7 V.
The maximum output current is 40 mA.
The switching frequency is 1.2 MHz.
The operating temperature range is -40°C to 85°C.
The CAT37TDI-GT3 is available in a TSOT-23-5 package.
Yes, it supports analog and PWM dimming.
It is suitable for color LCD and keypad backlighting, cellular phones, handheld terminals, digital cameras, PDAs, and portable MP3 players.