MIC2104 datasheet(1/42 Pages) MICROCHIP

部件名	MIC2104

功能描述	75V Synchronous Buck Controllers Featuring Adaptive ON-Time Control

PDF	42 Pages

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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1 / 42 page

 2017 Microchip Technology Inc.

DS20005899A-page 1

MIC2103/4

Features

• Hyper Speed Control® Architecture Enables:

- High Delta V Operation

(VIN = 75V and VOUT = 1.2V)

- Any Capacitor™ Stable

• 4.5V to 75V Input Voltage

• Adjustable Output Voltage from 0.8V to 24V (Also

Limited by Duty Cycle)

• 200 kHz to 600 kHz Programmable Switching

Frequency

• HyperLight Load® Control (MIC2103 Only)

• Hyper Speed Control® (MIC2104 Only)

• Enable Input, Power-Good Output

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

• Programmable Current-Limit and Fold-Back

“Hiccup” Mode Short-Circuit Protection

• 5 ms Internal Soft-Start, Internal Compensation,

and Thermal Shutdown

• Supports Safe Start-Up into a Pre-Biased Output

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

• Available in 16-Pin 3 mm x 3 mm QFN Package

Applications

• Distributed Power Systems

• Networking/Telecom Infrastructure

• Printers, Scanners, Graphic Cards, and Video

Cards

General Description

The MIC2103/4 are constant-frequency, synchronous

buck controllers that feature a unique adaptive ON-time

control architecture. The MIC2103/4 operates over an

input supply range from 4.5V to 75V and can be used

to supply up to 15A of output current. The output

voltage is adjustable down to 0.8V with a guaranteed

accuracy

of

±1%. The

device

operates

with

programmable switching frequency from 200 kHz to

600 kHz.

The HyperLight 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 MIC2103/4 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,

internal

soft-start

to

reduce

inrush

current,

fold-back

current-limit, “hiccup” mode short-circuit protection,

and thermal shutdown.

Package Type

Please see pin descriptions in Table 3-1.

1

5

VDD

4

PVDD

ILIM

DL

AGND

NC

BST

NC

8

16

13

2

3

6

7

14

15

12

9

11

10

EP

75V Synchronous Buck Controllers

Featuring Adaptive ON-Time Control

类似零件编号 - MIC2104

制造商	部件名	数据表	功能描述
Micrel Semiconductor	MIC2104	1Mb / 38P	75V, Synchronous Buck Controllers featuring Adaptive On-Time Control
	MIC2104YML	1Mb / 36P	75V, Synchronous Buck Controllers featuring Adaptive On-Time Control
	MIC2104YML	1Mb / 38P	75V, Synchronous Buck Controllers featuring Adaptive On-Time Control

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类似说明 - MIC2104

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