LM34910

Features: Integrated 40V, N-Channel buck switch Integrated start-up regulator Input Voltage Range: 8V to 36VNo loop compensation requiredUltra-Fast transient response Operating frequency remains constant with load current and input voltage Maximum Duty Cycle Limited During Start-Up Adjustable outp...

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LM34910 Picture
SeekIC No. : 004395347 Detail

LM34910: Features: Integrated 40V, N-Channel buck switch Integrated start-up regulator Input Voltage Range: 8V to 36VNo loop compensation requiredUltra-Fast transient response Operating frequency remains con...

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Part Number:
LM34910
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

Integrated 40V, N-Channel buck switch
Integrated start-up regulator
Input Voltage Range: 8V to 36V
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





Application

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





Pinout

  Connection Diagram




Specifications

VIN to GND
BST to GND
SW to GND (Steady State)
ESD Rating (Note 2)
Human Body Model
BST to VCC
VIN to SW
BST to SW
VCC to GND
SGND to RTN
Current out of ISEN
SS to RTN
All Other Inputs to GND
Storage Temperature Range
JunctionTemperature
40V
50V
-1.5V
2kV
40V
40V
14V

14V
-0.3V to +0.3V
See Text
-0.3V to 4V
-0.3 to 7V
-55°C to +150°C
150°C


Output Current 1250 mA
Input Min Voltage 8 Volt
Input Max Voltage 36 Volt
Output Min 2.5 Volt
Output Max 33 Volt
Frequency Min Undefined kHz
Frequency Max 1000 kHz
Efficiency (peak) 92 %
On/Off Pin Yes
Error Flag No
SoftStart Yes
Sync Pin No
Inverting Yes
Flyback No
RegType Switching Regulator
Temperature Min -40 deg C
Temperature Max 125 deg C
Adjustable Output Yes
Adj Switch Frequency Yes
PWM Mode Constant on-time
Topology Buck
Special Features No compensation required; ultra-fast transient response
Step-Down Yes
Multiple Output Capability No
Output Power Undefined Watt
Output Voltage Undefined Volt
Output Range 2.5V to 33V
Switching Frequency 1000 kHz
Feedback Voltage 2.5 Volt
Regulator Family Undefined
AEC Q-100 Automotive Grade Undefined
Synchronous Rectification No
View Using Catalog





Description

The LM34910 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 40V N-Channel Buck Switch, and is available in the thermally enhanced LLP-10 package. 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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