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LM76005 Datasheet(PDF) 1 Page - Texas Instruments |
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LM76005 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 51 page  LM76005 3.5-V to 60-V, 5-A Synchronous Step-Down Converter 1 Features • Functional Safety-Capable – Documentation available to aid functional safety system design • Designed for rugged industrial applications – Input transient protection up to 65 V – Optimized for low EMI requirements – Pin-selectable FPWM operation – Adjustable frequency range: 200 kHz to 500 kHz – Start up with pre-biased output voltage – Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection • Suited for scalable power supplies – Pin compatible with: • LM76002/3 (60 V, 2.5 A or 3.5 A) – Output voltage: 1 V to 95% of VIN – Synchronization to external clock – Adjustable soft-start (6.3 ms default) • Low power dissipation across load spectrum – 15-µA quiescent current in regulation – 95% efficiency at 400 kHz (12VIN, 5VOUT, 2A) – 92% PFM efficiency at 10-mA (12VIN, 5VOUT) – External bias option for improved efficiency • Create a custom design using the LM76005 with the WEBENCH® Power Designer 2 Applications • Industrial PC and Programmable logic controllers • Asset tracking and fleet management systems • Personal transport vehicle: electric bike • Video surveillance: IP network camera • Motor drives 3 Description The LM76005 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 5 A (LM76005) of load current from an input up to 60 V. Tolerance goes up to 65 V, easing input surge protection. The LM76005 use peak-current-mode control to provide exceptional efficiency and output accuracy in a small solution size. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, ensures exceptional efficiency across the entire load range. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR22) and thermal performance. The small solution size and feature set of the LM76005 are designed to simplify the implementation for a wide range of end equipment. The LM76005 device is available in the WQFN 30-pin leadless package with wettable flanks. Device Information PART NUMBER (1) PACKAGE BODY SIZE (NOM) LM76005 WQFN (30) 6.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. LM76005 V IN PVIN EN BOOT SW FB AGND V OUT C BOOT L C IN C OUT R FBT R FBB VCC BIAS PGND C2 Simplified Schematic Load Current (A) 0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 4 5 5 80 82 84 86 88 90 92 94 96 98 100 LM76 VIN = 12 V VIN = 24 V Efficiency: VOUT = 5 V, fSW = 400 kHz, Auto Mode www.ti.com LM76005 SNVSBK5A – FEBRUARY 2020 – REVISED JULY 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 1 Product Folder Links: LM76005 LM76005 SNVSBK5A – FEBRUARY 2020 – REVISED JULY 2020 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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