MIC5191YML TR Micrel Inc, MIC5191YML TR Datasheet

IC FILTER/LDO CTRLR HS 10-MLF

MIC5191YML TR

Manufacturer Part Number
MIC5191YML TR
Description
IC FILTER/LDO CTRLR HS 10-MLF
Manufacturer
Micrel Inc
Type
Positive Adjustabler
Datasheet

Specifications of MIC5191YML TR

Number Of Outputs
1
Voltage - Output
Adjustable
Current - Supply
15mA
Voltage - Input
1 ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Package / Case
10-MLF®, QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-2722-2
MIC5191YML TR
MIC5191YMLTR
MIC5191YMLTR
General Description
The MIC5191 is an ultra high-speed linear regulator. It
uses an external N-Channel FET as its power device.
The MIC5191's ultra high-speed abilities can handle the
fast load demands of microprocessor cores, ASICs, and
other high-speed devices. Signal bandwidths of greater
than 500 kHz can be achieved with a minimum amount of
capacitance while at the same time keeping the output
voltage clean, regardless of load demand. A powerful
output driver delivers large MOSFETs into their linear
regions, achieving ultra-low dropout voltage.
1.25V
of a large amount of capacitance.
MIC5191 (1.0V reference) is optimized for output voltages
of 1.0V and higher.
The MIC5191 is offered in 10-pin 3mm×3mm MLF
10-pin MSOP-10 packages and has an operating junction
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
PowerPAK is a trademark of Siliconix, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
December 2006
IN
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
±10% can be turned into 1V ±1% without the use
V
IN
V
1.2V
CC
0.01µF
GND
= 12V
C1
0.01µF
C3
R3
®
VIN
VCC1
VCC2
EN
COMP
IS
and
MIC5191
1
PGND
SGND
Features
• Input voltage range: V
• +1.0% initial output tolerance
• Dropout down to 25mV@10A
• Filters out switching frequency noise on input
• Very high large signal bandwidth >500kHz
• PSRR >40dB at 500kHz
• Adjustable output voltage down to 1.0V
• Stable with any output capacitor
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Current limit protection
• 10-pin MLF
• Available –40°C to +125°C junction temperature
Applications
• Distributed power supplies
• ASIC power supplies
• DSP, µP, and µC power supplies
408
OUT
FB
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
IR3716S
Ultra High-Speed, High-Current
Active Filter / LDO Controller
®
and MSOP-10 packages
V
OUT
C2
10µF
MIC5191
1.0V@7A
GND
IN
= 1.0V to 5.5V
M9999-122206

Related parts for MIC5191YML TR

MIC5191YML TR Summary of contents

Page 1

... V IN PowerPAK is a trademark of Siliconix, Inc. MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( December 2006 Features • Input voltage range: V • +1.0% initial output tolerance • ...

Page 2

Micrel, Inc. Ordering Information Part Number Standard Pb-Free MIC5191BML MIC5191YML MIC5191BMM MIC5191YMM Pin Configuration VIN SGND 3 VCC1 4 COMP 5 10-Pin 3mm x 3mm MLF Top View Pin Description Pin Number Pin Name 1 VIN 2 ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ....................................................+6.0V IN Enable Voltage (V )....................................................+14V 2....................................................................+14V CC CC Junction Temperature (T ) ..................–40°C ≤ (3) ESD Rating Electrical Characteristics T = 25°C with V ...

Page 4

Micrel, Inc. Typical Characteristics December 2006 4 MIC5191 M9999-122206 ...

Page 5

Micrel, Inc. Functional Characteristics December 2006 5 MIC5191 M9999-122206 ...

Page 6

Micrel, Inc. Functional Diagram VCC1 EN December 2006 INTERNAL VOLTAGE REGULATOR OUTPUT CONTROL ENABLE AND LEVEL SHIFT COMP Figure 1. MIC5191 Block Diagram 6 VIN 50mV IS CURRENT LIMIT AMPLIFIER VCC2 OUT PGND FB 0.5V ERROR SGND AMPLIFIER MIC5191 M9999-122206 ...

Page 7

Micrel, Inc. Functional Description VIN The VIN pin is connected to the N-Channel drain. VIN is the input power being supplied to the output. This pin is also used to power the internal current limit comparator and compare the ISENSE ...

Page 8

Micrel, Inc. Application Information Designing with the MIC5191 Anatomy of a transient response A voltage regulator can maintain a set output voltage while its exterior world is pushing and pulling in its demand for power. The measure of a regulator ...

Page 9

Micrel, Inc. Compensation The MIC5191 allows the flexibility controlling the gain and bandwidth. This allows the MIC5191 design to be tailored to each individual design. In designing the MIC5191 important to maintain adequate phase margin. This is generally ...

Page 10

Micrel, Inc. compensation resistor, creating a higher mid-band gain. 100 80 60 Increasing Cout reduces the load resistance and output capacitor pole 40 allowing for an increase in mid-band gain 20 0 -20 0.01 0 100 Frequency (KHz) ...

Page 11

Micrel, Inc. Referring to Application Hint 17, Designing PCB Heat Sinks , the minimum amount of copper area for 28.8°C/W is 2750mm (or 0.426in denotes convection heating only (2 oz. copper) and the dotted line shows ...

Page 12

Micrel, Inc. Feedback Resistors IR3716S MIC5191 FB Figure 10. Adjustable Output The feedback resistors adjust the output to the desired voltage and can be calculated as follows: ⎛ ⎞ ⎜ ⎟ OUT REF R2 ...

Page 13

Micrel, Inc. The transient response also contributes to the overall AC output voltage deviation. Figure 12 shows 10A load transient. The top trace is the output of the switching regulator (same circuit as Figure10). The output voltage ...

Page 14

Micrel, Inc. Package Information December 2006 10-Pin MSOP (MM) ® 10-Pin 3mm x 3mm MLF (ML) 14 MIC5191 M9999-122206 ...

Page 15

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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