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MP28119 Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MP28119
Description  Ultra-small 1.7MHz, 600mA, Low-Voltage Synchronous Step-Down Converter
PDF  12 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28119 Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP28119 – ULTRA-SMALL 1.7MHZ, 600MA LOW-VOLTAGE SYNCHRONOUS STEP-DOWN CONVERTER
MP28119 Rev.0.91
www.MonolithicPower.com
3
11/23/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
(5) (continued)
VIN = VEN = 3.6V, TA = +25C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
Supply Current
VEN = VIN, VFB = 0.51V
400
600
μA
Shutdown Current
VEN = 0V, VIN = 6V
0.01
1
μA
IN Under Voltage Lockout
Threshold
UVLO Rising Edge
2.15
2.3
2.45
V
IN Under Voltage Lockout
Hysteresis
80
mV
Discharge MOSFET On
Resistance
100
Ω
TA = +25°C, MP28119EG
0.588
0.600
0.612
Regulated FB Voltage
VFB
–20°C ≤ TA ≤ +85°C
0.582
0.600
0.618
V
FB Input Bias Current
VFB = 0.65V, MP28119EG
–50
0.5
+50
nA
MP28119EG-1.0
IOUT = 50mA;–20°C ≤ TA ≤ +85°C
0.97
1.000
1.03
Regulated Output Voltage
MP28119EG-1.2
IOUT = 50mA;–20°C ≤ TA ≤ +85°C
1.164
1.200
1.236
V
PFET On Resistance
Rds(on)1 ISW = 100mA
0.42
Ω
NFET On Resistance
Rds(on)2 ISW = –100mA
0.28
Ω
SW Leakage Current
VEN = 0V,VIN = 6V, VSW = 0V or 6V
–1
+1
μA
PFET Current Limit
Duty Cycle = 100%,
Current Pulse Width < 1ms
0.8
1.6
2.4
A
Oscillator Frequency
Focs
1.7
MHz
Minimum On Time
Ton
100
ns
Thermal Shutdown Trip
Threshold
145
C
EN Turn-onTrip Threshold
–20°C ≤ TA ≤ +85°C
1.5
V
EN Turn-off Trip Threshold
–20°C ≤ TA ≤ +85°C
0.3
V
EN Input Current
VEN = 0V to 6V
–1
+1
μA
Notes:
5) 100% production test at +25°C. Typical and temperature specifications are guaranteed by design and characterization.



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