Texas Instruments LM4510
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 LiIon battery. The device's synchronous switching operation (no external Schottky diode) at heavy-load, and nonsynchronous switching operation at light-load, maximizes power efficiency. The output voltage can be adjusted by external resistors.| Part No. | LM4510 |
|---|---|
| Datasheet | LM4510 Download |
| Manufacturer |  Texas Instruments |
| Description | Synchronous Step-Up DC/DC Converter |
| Buy | Stock & Price |
FEATURES
●1 18 V@ 80 mA from 3.2 V Input● 5 V @ 280 mA from 3.2 V Input
● No External Schottky Diode Required
● 85% Peak Efficiency
● Soft Start
● True Shutdown Isolation
● Stable with Small Ceramic or Tantalum Output Capacitors
● Output Short-Circuit Protection
● Feedback Fault Protection
● Input Undervoltage Lock Out
● Thermal Shutdown
● 0.002-µA Shutdown Current
● Wide Input Voltage Range: 2.7 V to 5.5 V
● 1-MHz Fixed Frequency Operation
● Low-profile 10-pin WSON Package (3 mm x 3 mm x 0.8 mm) 2
APPLICATIONS
● Organic LED Panel Power Supply● Charging Holster
● White LED Backlight
● USB Power Supply
● Class D Audio Amplifier
● Camera Flash LED Driver 3
DESCRIPTION
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 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.
