LM2754SQX

Obsolete

Texas Instruments

IC LED DRIVER RGLTR 200MA 24WQFN

Find alt

Alpha

LM2754SQX

Obsolete

Texas Instruments

IC LED DRIVER RGLTR 200MA 24WQFN

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LM2754 Series

The LM2754 is an integrated low noise, high current switched capacitor DC/DC converter with four regulated current sinks. The device is optimized for driving 1 to 4 high power white LEDs in parallel with a maximum current of 800mA. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.

Two external low power resistors set the desired current for Torch and Flash modes. The TX pin allows the device to be forced into Torch mode during a Flash pulse, allowing for synchronization between the RF power amplifier pulse and Flash/Torch modes. To protect the device and Flash LEDs, internal Time-Out circuitry turns off the LM2754 in case of a faulty prolonged Flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.

The LM2754 is available in a small 24-pin thermally enhanced WQFN package.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2754SQX

Applications	Camera Flash
Current - Output / Channel	200 mA
Frequency	1 MHz
Internal Switch(s)	Yes
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	24-WFQFN Exposed Pad
Package Length	4 mm
Package Name	24-WQFN
Package Width	4 mm
Topology	Switched Capacitor (Charge Pump)
Type	DC DC Regulator
Voltage - Output (Max)	5.1 V
Voltage - Output (Min)	4.7 V
Voltage - Supply (Max)	5.5 V
Voltage - Supply (Min)	2.8 V

LM2754 Series

800mA switched capacitor flash LED driver with Time-Out Protection

Part	Frequency	Voltage - Supply (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Current - Output / Channel	Voltage - Output (Max)	Voltage - Output (Min)	Applications	Type	Mounting Type	Voltage - Supply (Min)	Number of Outputs	Package Length	Package Name	Package Width	Topology	Internal Switch(s)	Package / Case
Texas Instruments LM2754SQ/NOPB	1 MHz	5.5 V	85 °C	-40 °C	200 mA	5.1 V	4.7 V	Camera Flash	DC DC Regulator	Surface Mount	2.8 V	4	4 mm	24-WQFN	4 mm	Switched Capacitor (Charge Pump)	Yes	24-WFQFN Exposed Pad
Texas Instruments LM2754SQ	1 MHz	5.5 V	85 °C	-40 °C	200 mA	5.1 V	4.7 V	Camera Flash	DC DC Regulator	Surface Mount	2.8 V	4	4 mm	24-WQFN	4 mm	Switched Capacitor (Charge Pump)	Yes	24-WFQFN Exposed Pad
Texas Instruments LM2754SQX	1 MHz	5.5 V	85 °C	-40 °C	200 mA	5.1 V	4.7 V	Camera Flash	DC DC Regulator	Surface Mount	2.8 V	4	4 mm	24-WQFN	4 mm	Switched Capacitor (Charge Pump)	Yes	24-WFQFN Exposed Pad
Texas Instruments LM2754SQX/NOPB	1 MHz	5.5 V	85 °C	-40 °C	200 mA	5.1 V	4.7 V	Camera Flash	DC DC Regulator	Surface Mount	2.8 V	4	4 mm	24-WQFN	4 mm	Switched Capacitor (Charge Pump)	Yes	24-WFQFN Exposed Pad

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

No documents available