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 13 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 7 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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