mic47100 Micrel Semiconductor, mic47100 Datasheet

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mic47100

Manufacturer Part Number
mic47100
Description
Mic47100 1a High Speed Low Vin Ldo
Manufacturer
Micrel Semiconductor
Datasheet

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General Description
The MIC47100 is a high speed, Low V
delivering up to 1A and designed to take advantage of
point of load applications that use multiple supply rails to
generate a low voltage, high current power supply. The
MIC47100 is stable with only a 1µF ceramic output
capacitor and is available in a thermally enhanced
2mm × 2mm MLF
solution for board-constrained applications.
The MIC47100 has an NMOS output stage offering very
low output impedance. The NMOS output stage offers a
unique ability to respond very quickly to sudden load
changes such as that required by a microprocessor, DSP
or FPGA.
current and therefore can be used for driving the core
voltages of mobile processors, post regulating a core
DC/DC converter in any portable device.
The MIC47100 is available in fixed and adjustable output
voltages in the exposed pad MSOP-8 package and the tiny
2mm × 2mm MLF
temperature range of -40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
MicroLead Frame and MLF are registered trademark of Amkor Technology
February 2008
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
The MIC47100 consumes little quiescent
®
®
package thus making it an optimal
package with an operating junction
IN
LDO capable of
Features
• Operating voltage range:
• 0.8V to 2.0V output voltage range
• High bandwidth – very fast transient response
• PSRR >50dB at 100kHz
• Stable with a 1µF ceramic output capacitor
• Low dropout voltage of 80mV at 1A
• High output voltage accuracy:
• Logic level enable input
• UVLO on both supply voltages for easy turn-on
• ePad MSOP-8 – small form factor power package
• Thermally enhanced 2mm × 2mm MLF
Applications:
• Point of Load
• PDAs
• DSP, PLD and FPGA Power Supply
• Low Voltage Post Regulation
408
solution
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
- Input Supply: 1.0V to 3.6V
- Bias Supply: 2.3V to 5.5V
- +/- 1.5% initial accuracy
- +/- 2% over temperature
1A High Speed Low VIN LDO
MIC47100
®
M9999-022108-A
– smallest
(408) 944-0800

Related parts for mic47100

mic47100 Summary of contents

Page 1

... The MIC47100 consumes little quiescent current and therefore can be used for driving the core voltages of mobile processors, post regulating a core DC/DC converter in any portable device. The MIC47100 is available in fixed and adjustable output voltages in the exposed pad MSOP-8 package and the tiny ® 2mm × 2mm MLF package with an operating junction temperature range of -40° ...

Page 2

... Micrel, Inc. Part Number Nominal Output MIC47100YML MIC47100-0.8YML MIC47100-1.0YML MIC47100-1.2YML MIC47100YMME MIC47100-0.8YMME MIC47100-1.0YMME MIC47100-1.2YMME Note: 1. Other Voltage available. Contact Micrel for details. February 2008 Ordering Information Marking Code Lead Finish (1) Voltage ADJ EAA 0.8V E08 1.0V+ E10 1 ...

Page 3

... Feedback Input. Connect to OUT. Optimum load regulation is FB obtained when feedback is taken from the actual load point. Adjust Input. Connect external resistor divider to program ADJ output voltage. OUT Output. Output Voltage of Regulator 3 MIC47100 8-pin Exposed Pad MSOP Fixed and Adjustable (MME) M9999-022108-A (408) 944-0800 ...

Page 4

... MSOP-8 (θ ) ...........................................64°C/W JA ® 2mm x 2mm MLF (θ ).....................................90°C/W JA < +125°C, unless noted. A Min Typ 2.1 1.9 0.85 0 -1.5 -2.0 -0.1 0.015 -0.05 0.005 0.2 8 1.15 1.25 1.35 350 350 0.1 6 0.1 MIC47100 BIAS Max Units V 2.3 1 +2.0 0.1 %/V 0.05 %/V 0 250 2.1 µA 500 µA 500 1.0 µA µA 1.0 µA M9999-022108-A ...

Page 5

... OUT = 100mA OUT OUT (ambient temperature D(max 1.1 1.6 63 160 20 1 0.69 0.7 0.686 0.714 θ – Exceeding the maximum allowable power J(max M9999-022108-A MIC47100 2.5 A µV RMS °C °C V 0.2 V µA µA µs 500 0. (408) 944-0800 ...

Page 6

... Micrel, Inc. Typical Characteristics February 2008 6 MIC47100 M9999-022108-A (408) 944-0800 ...

Page 7

... Micrel, Inc. February 2008 7 MIC47100 M9999-022108-A (408) 944-0800 ...

Page 8

... Micrel, Inc. Functional Characteristics February 2008 8 MIC47100 M9999-022108-A (408) 944-0800 ...

Page 9

... Micrel, Inc. Functional Diagram February 2008 MIC47100 Block Diagram 9 MIC47100 M9999-022108-A (408) 944-0800 ...

Page 10

... Micrel, Inc. Applications Information The MIC47100 is a high speed, dual supply NMOS LDO designed to take advantage of point-of-load applications that use multiple supply rails to generate a low voltage, high current power supply. The MIC47100 can source 1A of output current while only requiring a 1µF ceramic output capacitor for stability ...

Page 11

... P = ⎝ D(MAX 125°C, the maximum junction temperature of J(max) the die θ thermal resistance = 90°C/W. JA The table below shows junction-to-ambient thermal resistance for the MIC47100 in the MLF θ JA Recommended Package Minimum Footprint 8-pin 2mm x 2mm 90°C/W ® MLF Thermal Resistance ...

Page 12

... Micrel, Inc. Package Information February 2008 8-Pin 2mm×2mm MLF (ML) 12 MIC47100 M9999-022108-A (408) 944-0800 ...

Page 13

... 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 February 2008 8-Pin e-Pad MSOP (MME) indemnify Micrel for any damages resulting from such use or sale. © 2008 Micrel, Incorporated. 13 MIC47100 nt M9999-022108-A (408) 944-0800 ...

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