LM3224 Series

615kHz/1.25MHz Step-up PWM DC/DC Converter

Catalog

615kHz/1.25MHz Step-up PWM DC/DC Converter

Part	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Current - Output	Number of Outputs	Topology	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Function	Mounting Type	Output Type	Frequency - Switching	Package / Case	Package / Case [custom]	Package / Case	Utilized IC / Part	Main Purpose	Voltage - Output	Supplied Contents	Regulator Topology	Board Type	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]
Texas Instruments LM3224MMX-ADJ/NOPB	20 V	2.7 V	1.9 A	1	Boost	7 V	1.26 V	Positive	-40 °C	125 ¯C	Step-Up	Surface Mount	Adjustable	1.25 MHz 615 kHz	8-MSOP 8-TSSOP	0.118 in	3 mm
Texas Instruments LM3224MM-ADJEV/NOPB			650 mA											1.25 MHz				LM3224	DC/DC Step Up	5 V	Board(s)	Boost	Fully Populated	Non-Isolated	1	4.2 V	2.7 V
Texas Instruments LM3224MM-ADJ/NOPB	20 V	2.7 V	1.9 A	1	Boost	7 V	1.26 V	Positive	-40 °C	125 ¯C	Step-Up	Surface Mount	Adjustable	1.25 MHz 615 kHz	8-MSOP 8-TSSOP	0.118 in	3 mm

Catalog

615kHz/1.25MHz Step-up PWM DC/DC Converter

Key Features

• Operating Voltage Range of 2.7V to 7V615kHz/1.25MHz Pin Selectable Frequency OperationOver Temperature ProtectionOptional Soft-Start Function8-Lead VSSOP PackageAll trademarks are the property of their respective owners.Operating Voltage Range of 2.7V to 7V615kHz/1.25MHz Pin Selectable Frequency OperationOver Temperature ProtectionOptional Soft-Start Function8-Lead VSSOP PackageAll trademarks are the property of their respective owners.

Description

The LM3224 is a step-up DC/DC converter with a 0.15Ω (typ.), 2.45A (typ.) internal switch and pin selectable operating frequency. With the ability to convert 3.3V to multiple outputs of 8V, -8V, and 23V, the LM3224 is an ideal part for biasing TFT displays. With the high current switch it is also ideal for driving high current white LEDs for flash applications. The LM3224 can be operated at switching frequencies of 615kHz and 1.25MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. An external soft-start pin allows the user to control the amount of inrush current during start up. The LM3224 is available in a low profile 8-lead VSSOP package. The LM3224 is a step-up DC/DC converter with a 0.15Ω (typ.), 2.45A (typ.) internal switch and pin selectable operating frequency. With the ability to convert 3.3V to multiple outputs of 8V, -8V, and 23V, the LM3224 is an ideal part for biasing TFT displays. With the high current switch it is also ideal for driving high current white LEDs for flash applications. The LM3224 can be operated at switching frequencies of 615kHz and 1.25MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. An external soft-start pin allows the user to control the amount of inrush current during start up. The LM3224 is available in a low profile 8-lead VSSOP package.