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PDF MIC47300 Data sheet ( Hoja de datos )
| Número de pieza | MIC47300 | |
| Descripción | 3A / Low Voltage Adjustable LDO Regulator | |
| Fabricantes | MICREL | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC47300 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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MIC47300
3A, Low Voltage, Adjustable LDO
Regulator with Dual Input Supply
General Description
The MIC47300 is a high-bandwidth, low-dropout, 3A volt-
age regulator ideal for powering core voltages of low-
power microprocessors. The MIC47300 implements a dual
supply configuration allowing for very low output
impedance and very fast transient response.
The MIC47300 requires a bias input supply between 3V
and 6.5V for proper operation. The main input supply rail
operates from 1.4V to 6.5V that allows for adjustable
output voltages down to 0.9V.
The MIC47300 requires a minimum of 1µF output
capacitance for stability, and optimal operation is achieved
with small ceramic capacitors.
The MIC47300 is available in a 5-pin power D-Pak
package (TO-252) with an operating temperature range of
–40°C to +125°C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• Input Voltage Range:
– VIN: 1.4V to 6.5V
– VBIAS: 3.0V to 6.5V
• Stable with 1µF ceramic capacitor
• ±1% initial tolerance
• Maximum dropout voltage (VIN–VOUT) of 400mV
over temperature
• Adjustable output voltage down to 0.9V
• Ultra fast transient response (Up to 10MHz bandwidth)
• Excellent line and load regulation specifications
• Power D-Pak package (TO-252)
• Thermal shutdown and current-limit protection
• Junction temperature range: –40°C to 125°C
Applications
• Graphics processors
• PC add-in cards
• Microprocessor core voltage supply
• Low voltage digital ICs
• High efficiency linear power supplies
• SMPS post regulators
__________________________________________________________________________________________
Typical Application*
www.DataSheet4U.com
Figure 1. Typical Application Circuit
*See Thermal Design Section
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 2009
M9999-102309-A
1 page  
Micrel, Inc.
Typical Characteristics (continued)
MIC47300
www.DataSheet4U.com
October 2009
5 M9999-102309-A
5 Page 
Micrel, Inc.
Package Information
MIC47300
5-Pin TO-252 Power D-Pak (D)
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 responsibility is assumed by Micrel for its
use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
wwMwic.Dreal tParSohdeuectts4Uar.econmot designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 2009 Micrel, Incorporated.
October 2009
11 M9999-102309-A
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MIC47300.PDF ] | |
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