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PDF MP2127 Data sheet ( Hoja de datos )
| Número de pieza | MP2127 | |
| Descripción | 1.2MHz Synchronous Step-Down Converter | |
| Fabricantes | MPS | |
| Logotipo |  |
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The Future of Analog IC Technology
DESCRIPTION
The MP2127 is a fully integrated, internally
compensated 1.2MHz fixed frequency PWM
step-down converter. It is ideal for powering
portable equipment that runs from a single cell
Lithium-Ion (Li+) Battery, with an input range
from 2.7V to 6V. The MP2127 can provide up to
2A of load current with output voltage as low as
0.8V. It can also operate at 100% duty cycle for
low dropout applications. With peak current
mode control and internal compensation, the
MP2127 is stable with ceramic capacitors and
small inductors. Fault condition protection
includes cycle-by-cycle current limiting and
thermal shutdown.
MP2127 is available in the small 6-pin
3mmx3mm QFN package.
MP2127
2.7-6V Input, 2A, 1.2MHz
Synchronous Step-Down Converter
FEATURES
• Output Adjustable from 0.8V to VIN
• Up to 95% Efficiency
• 100% Duty Cycle for Low Dropout
Applications
• Power Good Indicator Output
• 1.2MHz Fixed Switching Frequency
• Stable with Low ESR Output Ceramic
Capacitors
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Short circuit protection
• 2.7V-6V Input Operation Range
• Available in 6-pin 3x3mm QFN
APPLICATIONS
• Smart Phones, PDA’s
• DVD+/-RW Drives
• Digital Cameras
• Portable Instruments
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
VIN
2.7V 6V
4 PVIN
R3
100k
PGOOD 6
C1
10
5 VIN MP2127 SW 3
2 GND
FB 1
L1
3.3
PGOOD
R1
20k
R2
40k
VOUT
1.2V/2A
C1
33
Efficiency vs.
Load Current
100
90 VIN=3V
80
70 VIN=5V
60
50
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
LOAD CURRENT(A)
MP2127 Rev. 0.91
4/27/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
1
Free Datasheet http://www.datasheet4u.com/
1 page  
MP2127 – 2.7-6V, 2A, 1.2MHZ SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VOUT = 1.2V, TA = +25ºC, unless otherwise noted.
Efficiency vs. Load Current
100
90 VIN=3V
80
70 VIN=5V
60
50
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
LOAD CURRENT(A)
Enabled Supply Current
vs. Input Voltage
680
660
640
620
600
580
560
540
520
500
02468
VIN(V)
Load Regulation
0.20
0.16
0.12
0.08
0.04
0.00
-0.04
-0.08
-0.12
-0.16
-0.20
0
VIN=5V
VIN=3V
0.5 1 1.5
LOAD CURRENT(A)
2
Line Regulation
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
2
IO=0A
IO=1A
IO=2A
3456
INPUT VOLTAGE (V)
7
Case Tem perature Rise
vs. Output Current
40
35
30
25
20
15
10
5
0
0 0.5 1 1.5 2
OUTPUT CURRENT (A)
Ipeak vs. Duty
4.2
3.9
3.6
3.3
3
0%
20% 40% 60% 80% 100%
DUTY CYCLE
MP2127 Rev. 0.91
4/27/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
MP2127 – 2.7-6V, 2A, 1.2MHZ SYNCHRONOUS STEP-DOWN CONVERTER
PACKAGE INFORMATION
PIN 1 ID
MARKING
2.90
3.10
PIN 1 ID
INDEX AREA
QFN6 (3mmx3mm)
0.35
0.55
2.90
3.10
0.35
0.45
6
0.95
BSC
4
1.40
1.60
PIN 1 ID
SEE DETAIL A
1
2.20
2.40
3
TOP VIEW
BOTTOM VIEW
0.20 REF
SIDE VIEW
0.80
1.00
0.00
0.05
PIN 1 ID OPTION A
R0.20 TYP.
PIN 1 ID OPTION B
R0.20 TYP.
DETAIL A
0.80
0.40
0.95
2.90
1.50
NOTE:
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.
3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.
4) JEDEC REFERENCE IS MO-229, VARIATION VEEA-2.
5) DRAWING IS NOT TO SCALE.
2.30
RECOMMENDED LAND PATTERN
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP2127 Rev. 0.91
4/27/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MP2127.PDF ] | |
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