Microchip Technology

MIC26603YJL-TR

Voltage Regulators - DC DC Switching Regulators

MPN
MIC26603YJL-TR
Package / Case
QFN-28
Key Attributes
28V, 6A Synchronous Buck DC/DC Regulator

Technical Specifications

TypeDescription
Output TypeAdjustable
Output Voltage3.15 V
Output Current6 A
FunctionStep-down type
Working Voltage V16.25 V
Switching Freq Hz600 kHz
Channels1
TypeDescription
Iq A0 A
Switch tube (built-in/external)Built-in
Operating Temp-40°C ~ +125°C
FeaturesBuilt-in LDO regulator;Light load efficient mode;Hiccup current limiting;Operating status indication;Overcurrent Protection
TopologyBuck
Package / CaseQFN-28

Product Introduction

The Micrel MIC26603 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive ontime control architecture. The MIC26603 operates over a supply range of 4.5V to 28V. It has an internal linear regulator which provides a regulated 5V to power the internal control circuitry. MIC26603 operates at a constant 600kHz switching frequency in continuous-conduction mode and can be used to provide up to 6A of output current. The output voltage is adjustable down to 0.8V.

Micrel’s Hyper Light Load™ architecture provides the same high-efficiency and ultra-fast transient response as the Hyper Speed Control™ architecture under medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable-frequency, discontinuous-mode operation.

The MIC26603 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, thermal shutdown, internal soft-start to reduce the inrush current, foldback current limit and “hiccup mode” short-circuit protection. The MIC26603 includes a Power Good (PG) output to allow simple sequencing.

Features

  • Hyper Light Load™ efficiency – up to 80% at 10mA
  • Hyper Speed Control™ architecture enables
  • High Delta V operation (VIN = 28V and VOUT = 0.8V)
  • Small output capacitance
  • Input voltage range: 4.5V to 28V
  • Output current up to 6A
  • Up to 95% Efficiency
  • Adjustable output voltage from 0.8V to 5.5V
  • ±1% FB accuracy
  • Any CapacitorTM stable – zero-to-high ESR
  • 600kHz switching frequency
  • Power Good (PG) output
  • Foldback current-limit and “hiccup mode” short-circuit protection
  • Safe start-up into pre-biased loads
  • 5mm×6mm MLF package
  • 40°C to +125°C junction temperature range

Applications

  • - Distributed power systems - Telecom/networking infrastructure - Printers, scanners, graphic cards, and video cards

Datasheet

📄 Open Download

Alternative Parts

Common MIC26603YJL-TR alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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