MIC4680YMTR Micrel Semiconductor, MIC4680YMTR Datasheet

MIC4680YMTR

Manufacturer Part Number

MIC4680YMTR

Description

SOP-8

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC468050BM.pdf (15 pages)

Current page: 1 of 15
Download datasheet (894Kb)

General Description

The MIC4680 SuperSwitcher™ is an easy-to-use fixed or

adjustable output voltage step-down (buck) switch-mode

voltage regulator. The 200kHz MIC4680 achieves up to

1.3A of continuous output current over a wide input range

in a 8-pin SOIC.

The MIC4680 is available in 3.3V and 5V fixed output

versions or adjustable output down to 1.25V.

The MIC4680 has an input voltage range of 4V to 34V,

with excellent line, load, and transient response. The

regulator performs cycle-by-cycle current limiting and

thermal shutdown for protection under fault conditions. In

shutdown mode, the regulator draws less than 2µA of

standby current.

The MIC4680 SuperSwitcher™ regulator requires a mini-

mum number of external components and can operate

using a standard series of inductors and capacitors.

Frequency compensation is provided internally for fast

transient response and ease of use.

The MIC4680 is available in the 8-pin SOIC with a

–40°C to +125°C junction temperature range.

Typical Application

SHUTDOWN

SuperSwitcher is a trademark of Micrel, Inc.

August 2006

ENABLE

+6V to +34V

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Power

SOIC-8

35V

15F

Fixed Regulator Circuit

SHDN

MIC4680-3.3BM

GND

5–8

B260A or

SS26

68H

3.3V/1A

220F

16V

SHUTDOWN

Features

• SOIC-8 package with up to 1.3A output current

• All surface mount solution

• Only 4 external components required

• Fixed 200kHz operation

• 3.3V, 5V, and adjustable output versions

• Internally compensated with fast transient response

• Wide 4V to 34V operating input voltage range

• Less than 2µA typical shutdown-mode current

• Up to 90% efficiency

• Thermal shutdown

• Overcurrent protection

Applications

• Simple 1A high-efficiency step-down (buck) regulator

• Replacement of TO-220 and TO-263 designs

• Efficient pre-regulator (5V to 2.5V, 12V to 3.3V, etc.)

• On-card switching regulators

• Positive-to-negative converter (inverting buck-boost)

• Simple battery charger

• Negative boost converter

• Higher output current regulator using external FET

ENABLE

+5V to +34V

Power

SOIC-8

1A 200kHz SuperSwitcher™

35V

15F

Adjustable Regulator Circuit

Buck Regulator

SHDN

MIC4680

MIC4680BM

GND

5–8

B260A or

SS26

68H

M9999-081406

3.01k

2.94k

2.5V/1A

220F

16V

Related parts for MIC4680YMTR

Related keywords

MIC4680YMTR datasheet
MIC4680YMTR data sheet
MIC4680YMTR pdf datasheet
MIC4680YMTR component
MIC4680YMTR part
MIC4680YMTR distributor
MIC4680YMTR RoHS
MIC4680YMTR datasheet download