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LM5088 Datasheet PDF

Part Series:LM5088 Series
Description:75V Wide Vin Non-Synchronous Buck Controller
Document:LM5088MH-1/NOPB Datasheet PDF (41 Pages)

LM5088 Datasheet PDF

41 Pages
TI
DC DC Cntrlr Single-OUT Buck Controller/PWM DC to DC Controller 4.5V to 75V Input 16Pin TSSOP EP Rail
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TI
DC DC Cntrlr Single-OUT Buck Controller/PWM DC to DC Controller 4.5V to 75V Input 16Pin TSSOP EP T/R
41 Pages
TI
DC DC Cntrlr Single-OUT Buck Controller/PWM DC to DC Controller 4.5V to 75V Input 16Pin TSSOP EP Rail
41 Pages
TI
DC DC Cntrlr Single-OUT Buck Controller/PWM DC to DC Controller 4.5V to 75V Input 16Pin TSSOP EP T/R
41 Pages
TI
75V Wide Vin Non-Synchronous Buck Controller
39 Pages
TI
LM5088-2 DC to DC Controller 5VDC Output Evaluation Board
39 Pages
TI
TEXAS INSTRUMENTS LM5088MH-1EVAL/NOPB Evaluation Board, Synchronous Buck Converter, Provides 5% Oscillator Frequency Dithering
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BOARD EVALUATION FOR LM5088MH-2
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BOARD EVALUATION FOR LM5088MH-1

LM5088 - TI Specifications

TYPE
DESCRIPTION
Case/Package
HTSSOP-16
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LM5088 - TI Function Overview

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.
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)
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