LM4510

現行

具實際關機隔離的同步降壓 DC/DC 轉換器

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 850 Switching frequency (max) (kHz) 1200 Features Adjustable soft start, Enable, Synchronous Rectification Vout (min) (V) 1.265 Vout (max) (V) 18 Iq (typ) (µA) 1700 Duty cycle (max) (%) 94 Switch current limit (typ) (A) 1.2
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 850 Switching frequency (max) (kHz) 1200 Features Adjustable soft start, Enable, Synchronous Rectification Vout (min) (V) 1.265 Vout (max) (V) 18 Iq (typ) (µA) 1700 Duty cycle (max) (%) 94 Switch current limit (typ) (A) 1.2
WSON (DSC) 10 9 mm² 3 x 3
  • 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 × 3 mm × 0.8 mm)
  • 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 × 3 mm × 0.8 mm)

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.

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類型 標題 日期
* Data sheet LM4510 Synchronous Step-Up DC/DC Converter with True Shutdown Isolation datasheet (Rev. D) PDF | HTML 2014年 11月 12日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
EVM User's guide AN-1697 LM4510 Evaluation Board (Rev. A) 2013年 5月 1日
Application note Designing Energy-Efficient Handheld Illum Solutions (Rev. A) 2013年 4月 30日

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