ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM TSOT23-5
- Series：CAT37
- Mfr：onsemi
- Package：Bulk
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：7V
- Voltage - Output：20V
- Current - Output / Channel：40mA
- Frequency：1.2MHz
- Dimming：Analog, PWM
- Applications：Backlight, Camera Flash
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Supplier Device Package：TSOT-23-5
- Grade：-
- Qualification：-
Download product information
Overview
The CAT37TDI-TE7 is a DC/DC step-up converter manufactured by onsemi, designed to deliver regulated output current for LED applications. It operates at a constant switching frequency of 1.2 MHz, enabling the use of small external inductors and ceramic capacitors. The device supports input voltages ranging from 2 V to 7 V and provides an adjustable output current up to 40 mA. Packaged in a compact SOT-23-6 format, it functions within a temperature range of -40 °C to +85 °C.
Feature Summary
- Provides stable regulated output current for LED lighting applications
- Operates at a constant 1.2 MHz switching frequency for efficient design
- Supports wide input voltage range from 2 V to 7 V
- Enables compact system design through compatibility with small passive components
Applications
- LED lighting systems requiring DC level dimming control
- Portable battery-powered devices needing step-up conversion
- Compact electronic circuits utilizing small external inductors
Procurement Notes
Verify the specific suffix 'TDI' against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure the component matches the required operating temperature range and electrical characteristics for your application. Cross-reference the datasheet for any updates regarding lead-free compliance or RoHS status prior to procurement.
Selection Notes
Select this component when a compact, high-frequency boost converter is needed for low-power LED driving. Its 1.2 MHz operation allows for smaller magnetic components compared to lower-frequency alternatives. Consider the 2 V to 7 V input range and 40 mA current limit to ensure compatibility with the target power source and load requirements.
Part Context
This part belongs to the CAT37 series of LED driver ICs from onsemi. These devices are engineered as simple, cost-effective solutions for driving LEDs from single-cell or multi-cell battery sources. The series focuses on providing reliable current regulation in minimal space, suitable for consumer electronics and portable instrumentation.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative manufacturers or models.
