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LM5088MH-1/NOPB . - 

DC/DC Controller, Constant On-Time, 8.3V to 13V, 1 Output, Buck, 1MHz, HTSSOP-16

LM5088MH-1/NOPB . - DC/DC Controller, Constant On-Time, 8.3V to 13V, 1 Output, Buck, 1MHz, HTSSOP-16

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Manufacturer Part No:
LM5088MH-1/NOPB .
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Product Overview

The LM5088MH-1/NOPB is a non-synchronous high voltage current mode Buck Controller features all the necessary functions to implement an efficient high voltage buck converter using a minimum number of external components. The LM5088 can be configured to operate over an ultra-wide input voltage range of 4.5V to 75V. This easy to use controller includes a level shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage/low output voltage applications. The controller switching frequency is programmable from 50kHz to 1MHz. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability.
  • Drives external high-side N-channel MOSFET
  • Low IQ shutdown and standby modes
  • High duty cycle ratio feature for reduced dropout voltage
  • Wide bandwidth error amplifier
  • Single resistor oscillator frequency setting
  • Oscillator synchronization capability
  • Programmable soft-start
  • High voltage, low dropout bias regulator
  • Thermal shutdown protection
  • Green product and no Sb/Br


Power Management, Automotive, Industrial, Motor Drive & Control

Product Information

1 Output
Buck (Step Down)
MSL 1 - Unlimited
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