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MP2918GL Datasheet(PDF) 6 Page - Monolithic Power Systems

No. de pieza MP2918GL
Descripción Electrónicos  4V to 40V Input, Current Mode, Synchronous, Step-Down Controller
PDF  30 Pages
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Fabricante Electrónico  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2918GL Datasheet(HTML) 6 Page - Monolithic Power Systems

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MP2918
—4V TO 40V SYNCHRONOUS STEP-DOWN CONTROLLER
MP2918 Rev. 1.02
www.MonolithicPower.com
6
5/31/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
VIN = 24V, TJ = -40°C to +125°C
(4), EN/SYNC = 2V, V
ILIMIT = 75mV, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Gate Driver
TG pull-up resistor
RTG_PULLUP
2
Ω
TG pull-down resistor
RTG_PULLDN
1
Ω
BG pull-up resistor
RBG_PULLUP
3
Ω
BG pull-down resistor
RBG_PULLDN
1
Ω
Dead time
tdead
CLoad = 3.3nF
60
ns
TG maximum duty cycle
Dmax
VFB = 0.7V
98
99.5
%
TG minimum on time
(5)
tON_MIN_TG
92
ns
BG minimum on time
tON_MIN_BG
175
250
ns
Power Good (PG)
Power good low
VPG_Low
Iload = 4mA
0.1
0.3
V
PG rising threshold
PGVth_RSING
VOUT rising
85%
90%
96.5%
VFB
VOUT falling
101%
107% 112.5%
PG falling threshold
PGVth_FALLING
VOUT falling
81%
87%
92.5%
VFB
VOUT rising
105%
110% 116.5%
PG threshold hysteresis
PGVth_HYS
3%
VFB
Power good leakage
IPG_LK
PG = 5V
2
μA
Power good delay
tPG_delay
Rising
37
μs
Falling
28
AAM/CCM
AAM output current
IAAM
RFREQ = 45.3kΩ
13.2
μA
CCM required AAM threshold
voltage
VCCM_TH
2.3
V
NOTES:
4) Not tested in production, guaranteed by over-temperature correlation
5) Not tested in production, guaranteed by design and characterization.



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