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LM2695

ACTIVE

High Voltage (30V, 1.25A) Step Down Switching Regulator

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TLVM13620 ACTIVE 3.6-V to 36-V input, 1-V to 6-V output, 2-A step-down module in 4-mm x 6-mm x 1.8-mm package Save board space, simplify design and speed time to market with an integrated-inductor power module.

Product details

Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 2.5 Vout (max) (V) 24 Iout (max) (A) 1.25 Iq (typ) (mA) 1.7 Switching frequency (min) (kHz) 45 Switching frequency (max) (kHz) 750 Features Enable, Over Current Protection, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT) Duty cycle (max) (%) 94 Type Converter
Vin (min) (V) 8 Vin (max) (V) 30 Vout (min) (V) 2.5 Vout (max) (V) 24 Iout (max) (A) 1.25 Iq (typ) (mA) 1.7 Switching frequency (min) (kHz) 45 Switching frequency (max) (kHz) 750 Features Enable, Over Current Protection, UVLO Fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT) Duty cycle (max) (%) 94 Type Converter
HTSSOP (PWP) 14 32 mm² 5 x 6.4 WSON (DPR) 10 16 mm² 4 x 4
  • Integrated 33V, N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • Input Voltage Range: 8V to 30V
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant with Load Current and Input Voltage
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Valley Current Limit At 1.25A
  • Precision Internal Reference
  • Low Bias Current
  • Highly Efficient Operation
  • Thermal Shutdown

Package

  • 10-Pin WSON (4 mm x 4 mm)
  • 14-Pin HTSSOP
  • Exposed Thermal Pad For Improved Heat Dissipation

All trademarks are the property of their respective owners.

Typical Applications

  • High Efficiency Point-Of-Load (POL) Regulator
  • Non-Isolated Telecommunication Buck Regulator
  • Secondary High Voltage Post Regulator
  • Integrated 33V, N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • Input Voltage Range: 8V to 30V
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant with Load Current and Input Voltage
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Valley Current Limit At 1.25A
  • Precision Internal Reference
  • Low Bias Current
  • Highly Efficient Operation
  • Thermal Shutdown

Package

  • 10-Pin WSON (4 mm x 4 mm)
  • 14-Pin HTSSOP
  • Exposed Thermal Pad For Improved Heat Dissipation

All trademarks are the property of their respective owners.

Typical Applications

  • High Efficiency Point-Of-Load (POL) Regulator
  • Non-Isolated Telecommunication Buck Regulator
  • Secondary High Voltage Post Regulator

The LM2695 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 1.25A to the load. This buck regulator contains a 33V N-Channel Buck Switch, and is available in the thermally enhanced WSON-10 and HTSSOP-14 packages. The hysteretic regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The current limit detection is set at 1.25A. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.

The LM2695 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 1.25A to the load. This buck regulator contains a 33V N-Channel Buck Switch, and is available in the thermally enhanced WSON-10 and HTSSOP-14 packages. The hysteretic regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The current limit detection is set at 1.25A. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.

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Technical documentation

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Type Title Date
* Data sheet LM2695 High Voltage (30V, 1.25A) Step Down Switching Regulator datasheet (Rev. A) 03 Apr 2013
EVM User's guide AN-1444 LM2695 Evaluation Board (Rev. A) 24 Apr 2013

Design & development

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Evaluation board

LM2695EVAL — High Voltage (30V, 1.25A) Step Down Switching Regulator

LM2695 High Voltage (30V, 1.25A) Step Down Switching Regulator

User guide: PDF
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HTSSOP (PWP) 14 View options
WSON (DPR) 10 View options

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