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DA9053 Datasheet(PDF) 39 Page - Dialog Semiconductor

Part # DA9053
Description  Flexible High-Power System PMIC with Switching USB Power Manager
PDF  183 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA9053 Datasheet(HTML) 39 Page - Dialog Semiconductor

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DA9053
Flexible High-Power System PMIC with 1.8 A
Switching USB Power Manager
Datasheet
Revision 2.1
31-Aug-2016
CFR0011-120-00
39 of 183
© 2016 Dialog Semiconductor
5.13.3
BUCKMEM
Table 28: BUCKMEM Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input voltage
VDD
2.8
Note 1
5.0
Note 1
V
Output capacitor
COUT
-30 %
20
+30 %
µF
Output capacitor ESR
f > 100 kHz
all caps + track
impedance
25
50
m
Ω
Inductor value
LBUCK
-30 %
2.2
+30 %
µH
Inductor resistance
LDCR
100
150
m
Ω
Output voltage
VBMEM
IOUT = IMAX
0.95
Note 2
2.525
V
Output voltage accuracy
incl. static line / load
regulation
-3
Note 3
+3
%
Output voltage ripple
IOUT = IMAX
10
mV
Load regulation transient
VTRLOAD
IOUT = 0 mA / 500 mA,
dI/dt = 30 mA/µs
20
40
mV
Line regulation transient
VTRLINE
VDD = 3.0 V.to.3.6 V
IOUT = 500 mA
tr=tf=10 µs
5
10
mV
Output current
IMAX
1000
Note 4
mA
Current limit
(programmable)
ILIM
BUCKMEM_ILIM=00
-20 %
800
20 %
mA
BUCKMEM_ILIM=01
-20 %
1000
20 %
mA
BUCKMEM_ILIM=10
-20 %
1200
20 %
mA
BUCKMEM_ILIM=11
-20 %
1500
20 %
mA
Quiescent current in OFF
mode
IQFF
1
µA
Quiescent current in
synchronous rectification
mode
IQON
open loop Note 5
2.5
mA
Switching frequency
f
2
MHz
Switching duty cycle
D
10
90
%
Turn on time
TON
2.2
ms
Output pull down resistor
@ VOUT = 0.5 V, can
be switched off via
MEM_PD_DIS
200
Ω
Efficiency
η
IOUT=30 mA to IMAX
VDD <4.2 V
85
%
On resistance pMOS
RpMOS
incl. pin and routing
0.33
0.46
Ω



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