Microchip MIC2125 Manual

Microchip Ikke kategoriseret MIC2125

Læs gratis den danske manual til Microchip MIC2125 (34 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 21 personer og har en gennemsnitlig bedømmelse på 4.5 stjerner ud af 11 anmeldelser. Har du et spørgsmål om Microchip MIC2125, eller vil du spørge andre brugere om produktet?

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 2015 Microchip Technology Inc. DS20005459B-page 1

MIC2125/6

Features

• Hyper Speed Control Architecture Enables:

- High delta V operation (VIN = 28V and VOUT

= 0.6V)

- Any Capacitor™ stable

• 4.5V to 28V Input Voltage

• Adjustable Output Voltage from 0.6V to 24V

• 200 kHz to 750 kHz Programmable Switching

Frequency

• HyperLight Load® (MIC2125)

• Hyper Speed Control® (MIC2126)

• Enable Input and Power Good Output

• Built-in 5V Regulator for Single-Supply Operation

• Programmable current limit and “hiccup” mode

short-circuit protection

• 7 ms internal soft-start, internal compensation,

and thermal shutdown

• Supports Safe Start-Up into a Prebiased Output

• –40°C to +125°C Junction Temperature Range

• Available in 16-pin, 3 mm × 3 mm QFN Package

Applications

• Networking/Telecom Equipment

• Base Stations, Servers

• Distributed Power Systems

• Industrial Power Supplies

General Description

The MIC2125 and MIC2126 are constant-frequency

synchronous buck controllers featuring a unique

adaptive ON-time control architecture. The MIC2125/6

operate over an input voltage range from 4.5V to 28V

and can be used to supply load current up to 25A. The

output voltage is adjustable down to 0.6V with a

guaranteed accuracy of ±1%. The device operates with

programmable switching frequency from 200 kHz to

750 kHz.

HyperLight Load® architecture provides the same high

efficiency and ultra-fast transient response as the

Hyper Speed Control® architecture under medium to

heavy loads. It also maintains high efficiency under

light load conditions by transitioning to variable

frequency, discontinuous conduction mode operation.

The MIC2125/6 offer a full suite of features to ensure

protection of the IC during fault conditions. These

include undervoltage lockout to ensure proper

operation under power-sag conditions, internal

soft-start to reduce inrush current, “hiccup” mode

short-circuit protection, and thermal shutdown.

Package Type

MIC2125/6

16-Pin 3 mm x 3 mm QFN (ML)

VDD

PVDD

ILIM

AGND

OVP

BST

VIN

FREQ

PGND

EP 17

5 6 7 8

16 15 14 13

28V Synchronous Buck Controllers

Featuring Adaptive ON-Time Control

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	MIC2125

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