MIC29712BT Micrel Inc, MIC29712BT Datasheet

MIC29712BT

Manufacturer Part Number

MIC29712BT

Description

IC REG LDO 7.5A ADJ TO-220-5

Manufacturer

Micrel Inc

Datasheet

1.MIC29710-3.3WT.pdf (11 pages)

Specifications of MIC29712BT

Applications

Converter, Intel Pentium® Plus

Voltage - Input

2.25 ~ 16 V

Number Of Outputs

Voltage - Output

1.25 ~ 16 V

Operating Temperature

0°C ~ 125°C

Mounting Type

Through Hole

Package / Case

TO-220-5 (Straight Leads)

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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General Description

The MIC29710 and MIC29712 are high-current, high-accu-

racy, low-dropout voltage regulators featuring fast transient

recovery from input voltage surges and output load current

changes. These regulators use a PNP pass element that

features Micrel’s proprietary Super ßeta PNP

The MIC29710 is available in the 3-pin fixed output and

the MIC29712 is available in the 5-pin adjustable output

voltage. Both versions are fully protected against

overcurrent

temperature operation, and positive and negative transient

voltage spikes.

A TTL compatible enable (EN) control pin supports

external on/off control. If on/off control is not required, the

device maybe continuously enabled by connecting EN to

IN.

The MIC29710 is available in the standard 3-pin TO-220

package the MIC29712 is available in the 5-pin TO-220

package with an operating junction temperature range of

0°C to +125°C.

For applications requiring even lower dropout voltage or

input voltage greater than 16V, see the MIC29750/29752.

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Typical Application

Super ßeta PNP is a registered trademark of Micrel, Inc. Pentium is a registered trademark of Intel Corporation.

PowerPC is a registered trademark of IBM Corporation.

October 2006

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

faults,

Fixed Regulator Configuration

reversed

lead

insertion,

process.

over-

Features

• Fast transient response

• 7.5A current capability

• 700mV dropout voltage at full load

• Low ground current

• Accurate 2% guaranteed tolerance

• “Zero” current shutdown mode (MIC29712)

• Fixed voltage and adjustable versions

Applications

• Pentium

• High-efficiency “green” computer systems

• High-efficiency linear power supplies

• High-efficiency switching supply post regulator

• Battery-powered equipment

supplies

7.5A Fast-Response LDO Regulator

Adjustable Regulator Configuration

, Pentium

MIC29710/29712

OUT

Plus, and Power PC

1.240

⎛

⎜

⎝

⎞

⎟

⎠

M9999-101906

processor

Related parts for MIC29712BT

MIC29712BT Summary of contents

Page 1

... Super ßeta PNP is a registered trademark of Micrel, Inc. Pentium is a registered trademark of Intel Corporation. PowerPC is a registered trademark of IBM Corporation. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com October 2006 Features • ...

Page 2

... Pin Name EN Enable (Input): Logic-level ON/OFF control. IN Unregulated Input: +16V maximum supply. GND Ground: Internally connected to tab (ground). OUT Regulated Output ADJ Output Voltage Adjust: 1.240V feedback from external resistive divider. 2 MIC29710/29712 Package 3-Pin TO-220 3-Pin TO-220 5-Pin TO-220 MIC29712BT/WT M9999-101906 ...

Page 3

Micrel, Inc. Absolute Maximum Ratings (1) Input Supply Voltage (V ) ......................... –0.7V to +20V IN Power Dissipation. ....................................Internally Limited Lead Temperature (soldering, 5 sec.)........................ 260°C Storage Temperature (T ) ........................... –65°C to 150°C s (2) EDS Rating Electrical Characteristics ...

Page 4

Micrel, Inc. Notes: 1. The maximum continuous supply voltage is 16V. 2. Devices are ESD sensitive. Handling precautions are recommended. 3. Specification for packaged product only. 4. For testing, MIC29712 V is programmed to 5V. OUT 5. Dropout voltage is ...

Page 5

Micrel, Inc. Typical Characteristics MIC29710 Load Transient Response Test Circuit October 2006 5 MIC29710/29712 M9999-101906 ...

Page 6

Micrel, Inc. October 2006 6 MIC29710/29712 M9999-101906 ...

Page 7

Micrel, Inc. Functional Diagram October 2006 7 MIC29710/29712 M9999-101906 ...

Page 8

Micrel, Inc. Application Information The MIC29710 and MIC29712 are high performance low-dropout voltage regulators suitable for all moderate to high-current voltage regulator applications. Their 700mV of drop-out voltage at full load make them especially valuable in battery powered systems and ...

Page 9

... 1.240 ⎝ ⎠ Where V is the desired output voltage. Figure 4 shows O component definition. MIC29712BT 4.75 to 5.25 100k 10µF R2 56.2k V OUT = 1.240V× (R1 / R2)] Figure 4. Adjustable Regulator with Resistors October 2006 Enable Input The MIC29712 versions features an enable (EN) input that allows ON/OFF control of the device. Special design allows “ ...

Page 10

Micrel, Inc. Package Information October 2006 3-Pin TO-220 (T) 5-Pin TO-220 (T) 10 MIC29710/29712 M9999-101906 ...

Page 11

Micrel, Inc. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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