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MP28300 Datasheet(PDF) 5 Page - Monolithic Power Systems

Part # MP28300
Description  Ultra-Low 500nA Iq, Wide Input 2V-5.5V, 300mA Step-Down Regulator Plus300nA Iq, 2V-5.5V Input, 100mA LDO in 2x2 QFN
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28300 Datasheet(HTML) 5 Page - Monolithic Power Systems

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MP28300
– ULTRA-LOW I
Q STEP-DOWN CONVERTER
MP28300 Rev.1.01
www.MonolithicPower.com
5
6/6/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
VIN1 = 3.6V, VIN2 = 3.6V, TJ = -40°C to +125°C, typical value is tested at TJ = 25°C. The limit over
temperature is guaranteed by characterization, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
LDO Section
Supply current (quiescent)
IQ_LDO
No load, CTRL1/2/3 = 0V,
CTRL4/5 = L/H,
no load current from VIN2
300
nA
Supply current (shutdown)
ISD_25
CTRL4/5 = 0V, or EN = 0
50
nA
Voltage dropout of LDO
VDP
ILDO = 0.1A, VOUT = 3.3V
50
mV
Dropout resistance
RDP
0.5
Ω
Current limit of LDO
ILIM_LDO
150
200
mA
DC output voltage accuracy
VOUT
CTRL4/5 = L/H, TJ = 25°C,
1.782
1.800
1.818
V
CTRL4/5 = L/H, TJ = -40°C to 85°C 1.773
1.827
Internal reference,
TA = -40°C to 85°C
0.591
0.600
0.609
Line regulation of LDO
IOUT = 1mA
0
%
Load regulation of LDO
IOUT = 1mA to 100mA
-1
1
%
Power supply rejection ratio
(6)
PSRR
10Hz, IOUT = 100mA
40
dB
100Hz, IOUT = 100mA
20
1kHz, IOUT = 100mA
15
Both Buck and LDO
Internal soft-start time
TSS
Buck
0.5
ms
TSS
LDO: VOUT = 3.3V, IOUT = 100mA,
Co = 1µF
2
ms
Discharge
resistance
during
enable off
RDIS_OFF
50
Ω
CTRL high logic
CTRLH
1.2
V
CTRL low logic
CTRLL
0.4
V
CTRL input current
ICTRL
VCTRL = 3.6V
1
nA
VCTRL = 0
0
VEN = 0V
0
CTRL turn-on delay
TD
300
μs
CTRL pull-down resistor
RPD
Not present when CTRL is high
to avoid IQ impact
2
MΩ
Power good threshold
PG
FB with respect to the regulation
90
%
Power good hysteresis
PGHys
10
%
Power good delay
PGTD
75
μs
Power
good
sink
current
capability
VPG_LO
Sink 1mA
0.4
V
Power good leakage current
IPGLK
VPGBUS = 1.8V
10
nA
Thermal shutdown
(5)
TSD
150
°C
Thermal hysteresis
(5)
TSDHY
30
°C
NOTES:
5) Guaranteed by design.
6) Data derived from bench characterization test.



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