Product details

Vin (Min) (V) 4.5 Vin (Max) (V) 75 Vout (Min) (V) 1.205 Vout (Max) (V) 70 Iout (Max) (A) 10 Iq (Typ) (uA) 3800 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Number of phases 1 Rating Automotive
Vin (Min) (V) 4.5 Vin (Max) (V) 75 Vout (Min) (V) 1.205 Vout (Max) (V) 70 Iout (Max) (A) 10 Iq (Typ) (uA) 3800 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Frequency Synchronization Operating temperature range (C) -40 to 125 Regulated outputs (#) 1 Number of phases 1 Rating Automotive
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • LM5088-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction Temperature)
  • Emulated Current Mode Control
  • Drives External High-Side N-channel MOSFET
  • Ultra-Wide Input Voltage Range from 4.5V to 75V
  • Low IQ Shutdown and Standby Modes
  • High Duty Cycle Ratio Feature for Reduced
    Dropout Voltage
  • Spread Spectrum EMI Reduction (LM5088-1)
  • Hiccup Timer for Overload Protection (LM5088-2)
  • Adjustable Output Voltage from 1.205 V with
    1.5% Feedback
    Reference Accuracy
  • Wide Bandwidth Error Amplifier
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • High Voltage, Low Dropout Bias Regulator
  • Thermal Shutdown Protection
  • Package: HTSSOP (16 Pin)
  • LM5088-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified
    (–40°C to +125°C Operating Junction Temperature)
  • Emulated Current Mode Control
  • Drives External High-Side N-channel MOSFET
  • Ultra-Wide Input Voltage Range from 4.5V to 75V
  • Low IQ Shutdown and Standby Modes
  • High Duty Cycle Ratio Feature for Reduced
    Dropout Voltage
  • Spread Spectrum EMI Reduction (LM5088-1)
  • Hiccup Timer for Overload Protection (LM5088-2)
  • Adjustable Output Voltage from 1.205 V with
    1.5% Feedback
    Reference Accuracy
  • Wide Bandwidth Error Amplifier
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • High Voltage, Low Dropout Bias Regulator
  • Thermal Shutdown Protection
  • Package: HTSSOP (16 Pin)

The LM5088 high voltage non-synchronous 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 4.5 V to 75 V. 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 LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a +/-5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability. The device is available in a thermally enhanced HTSSOP-16 pin package.

The LM5088 high voltage non-synchronous 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 4.5 V to 75 V. 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 LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a +/-5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability. The device is available in a thermally enhanced HTSSOP-16 pin package.

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Evaluation board

LM5088MH-1EVAL — LM5088-1 - Wide Input Range Non-Synchronous Buck Controller with Dithering Evaluation Module

The LM5088-1 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 evaluation (...)

In stock
Limit: 5
Evaluation board

LM5088MH-2EVAL — LM5088-2 - Wide Input Range Non-Synchronous Buck Controller with Hiccup Mode Restart

The LM5088-2 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 evaluation (...)

In stock
Limit: 5
Simulation model

LM5088 TINA-TI Transient Spice Model

SNVM021.ZIP (16 KB) - TINA-TI Spice Model
Simulation model

LM5088 TINA-TI Transient Reference Design

SNVM022.TSC (136 KB) - TINA-TI Reference Design
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Calculation tool

LM25088-5088QUICK-CALC — LM(2)5088 Quick Start Calculator

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HTSSOP (PWP) 16 View options

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