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AC/DC- und DC/DC-Wandler (integrierter FET)

LM2623-Q1

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0,8 V bis 14 V-Eingangsspannung, 2 A, Laststrom, Aufwärts-DC/DC, AEC-Q100-qualifiziert

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LM2623-Q1

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Produktdetails

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1 Vin (max) (V) 14 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.24 Vout (max) (V) 14 Iq (typ) (µA) 110 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 2.85
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1 Vin (max) (V) 14 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.24 Vout (max) (V) 14 Iq (typ) (µA) 110 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 2.85
WSON (NHL) 14 16 mm² 4 x 4
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4A
  • Good Efficiency Over a Very Wide Load Range
  • Very Low Output Voltage Ripple
  • Up to 2-MHz Switching Frequency
  • 0.9-V to 14-V Operating Voltage
  • 1.1-V Start-Up Voltage
  • 1.24-V to 14-V Adjustable Output Voltage
  • 0.17-Ω Internal MOSFET
  • Up to 90% Regulator Efficiency
  • 80-µA Typical Operating Current (Into VDD Pin of Supply)
  • Low Shutdown Current (IQ < 2.5 µA)
  • 4-mm × 4-mm Thermally Enhanced WSON Package Option
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4A
  • Good Efficiency Over a Very Wide Load Range
  • Very Low Output Voltage Ripple
  • Up to 2-MHz Switching Frequency
  • 0.9-V to 14-V Operating Voltage
  • 1.1-V Start-Up Voltage
  • 1.24-V to 14-V Adjustable Output Voltage
  • 0.17-Ω Internal MOSFET
  • Up to 90% Regulator Efficiency
  • 80-µA Typical Operating Current (Into VDD Pin of Supply)
  • Low Shutdown Current (IQ < 2.5 µA)
  • 4-mm × 4-mm Thermally Enhanced WSON Package Option

The LM2623-Q1 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for automotive systems. The device accepts an input voltage between 0.9 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V.

In order to adapt to a number of applications, the LM2623-Q1 allows the designer to program the output voltage, the operating frequency (300 kHz to 2 MHz), and duty cycle (17% to 90%) to optimize performance. The selected values can be fixed or can vary with input voltage or input-to-output voltage ratio. The LM2623-Q1 uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. The device normally regulates by skipping switching cycles when it reaches the regulation limit (pulse frequency modulation (PFM)).

Refer to Non-Linear Effect and Choosing the Correct C3 Capacitor to resolve any design challenges before board design is finalized.

The LM2623-Q1 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for automotive systems. The device accepts an input voltage between 0.9 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V.

In order to adapt to a number of applications, the LM2623-Q1 allows the designer to program the output voltage, the operating frequency (300 kHz to 2 MHz), and duty cycle (17% to 90%) to optimize performance. The selected values can be fixed or can vary with input voltage or input-to-output voltage ratio. The LM2623-Q1 uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. The device normally regulates by skipping switching cycles when it reaches the regulation limit (pulse frequency modulation (PFM)).

Refer to Non-Linear Effect and Choosing the Correct C3 Capacitor to resolve any design challenges before board design is finalized.
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* Data sheet LM2623-Q1 Automotive Gated-Oscillator-Based DC-DC Boost Converter datasheet PDF | HTML 05 Okt 2016

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