LM4510 Series

Synchronous Step-Up DC/DC Converter with True Shutdown Isolation

Catalog

Synchronous Step-Up DC/DC Converter with True Shutdown Isolation

Part	Voltage - Input (Max) [Max]	Package / Case	Number of Outputs	Voltage - Output (Min/Fixed)	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Mounting Type	Function	Voltage - Output (Max) [Max]	Current - Output	Frequency - Switching	Topology	Supplier Device Package	Voltage - Input (Min) [Min]	Output Type	Synchronous Rectifier	Main Purpose	Outputs and Type	Outputs and Type	Board Type	Supplied Contents	Regulator Topology	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part	Voltage - Output
Texas Instruments LM4510SD/NOPB	5.5 V	10-WFDFN Exposed Pad	1	2.7 V	-40 °C	85 C	Positive	Surface Mount	Step-Up	18 V	1 A	1 MHz	Boost	10-SON (3x3)	2.7 V	Adjustable
Texas Instruments LM4510SDEV/NOPB											120 mA	1 MHz						DC/DC Step Up	Non-Isolated	1	Fully Populated	Board(s)	Boost	2.7 V	5.5 V	LM4510	16 V

Catalog

Synchronous Step-Up DC/DC Converter with True Shutdown Isolation

Key Features

• 18 V@ 80 mA from 3.2 V Input5 V @ 280 mA from 3.2 V InputNo External Schottky Diode Required85% Peak EfficiencySoft StartTrue Shutdown IsolationStable with Small Ceramic or TantalumOutput CapacitorsOutput Short-Circuit ProtectionFeedback Fault ProtectionInput Undervoltage Lock OutThermal Shutdown0.002-µA Shutdown CurrentWide Input Voltage Range: 2.7 V to 5.5 V1-MHz Fixed Frequency OperationLow-profile 10-pin WSON Package(3 mm × 3 mm × 0.8 mm)18 V@ 80 mA from 3.2 V Input5 V @ 280 mA from 3.2 V InputNo External Schottky Diode Required85% Peak EfficiencySoft StartTrue Shutdown IsolationStable with Small Ceramic or TantalumOutput CapacitorsOutput Short-Circuit ProtectionFeedback Fault ProtectionInput Undervoltage Lock OutThermal Shutdown0.002-µA Shutdown CurrentWide Input Voltage Range: 2.7 V to 5.5 V1-MHz Fixed Frequency OperationLow-profile 10-pin WSON Package(3 mm × 3 mm × 0.8 mm)

Description

The LM4510 is a current mode step-up DC/DC converter with a 1.2-A internal NMOS switch designed to deliver up to 120 mA at 16 V from a Li-Ion battery. The device’s synchronous switching operation (no external Schottky diode) at heavy-load, and non-synchronous switching operation at light-load, maximizes power efficiency. True shutdown function by synchronous FET and related circuitry ensures input and output isolation. A programmable soft-start circuit allows the user to limit the amount of inrush current during start-up. The output voltage can be adjusted by external resistors. The LM4510 features advanced short-circuit protection to maximize safety during output to ground short condition. During shutdown the feedback resistors and the load are disconnected from the input to prevent leakage current paths to ground. The LM4510 is a current mode step-up DC/DC converter with a 1.2-A internal NMOS switch designed to deliver up to 120 mA at 16 V from a Li-Ion battery. The device’s synchronous switching operation (no external Schottky diode) at heavy-load, and non-synchronous switching operation at light-load, maximizes power efficiency. True shutdown function by synchronous FET and related circuitry ensures input and output isolation. A programmable soft-start circuit allows the user to limit the amount of inrush current during start-up. The output voltage can be adjusted by external resistors. The LM4510 features advanced short-circuit protection to maximize safety during output to ground short condition. During shutdown the feedback resistors and the load are disconnected from the input to prevent leakage current paths to ground.