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DA6021 Datasheet(PDF) 98 Page - Renesas Technology Corp

Part # DA6021
Description  HIGHLY INTEGRATED POWER MANAGEMENT IC FOR INTEL® ATOM™ Z3000 PROCESSOR
PDF  225 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

DA6021 Datasheet(HTML) 98 Page - Renesas Technology Corp

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DA6021
HIGHLY INTEGRATED POWER MANAGEMENT IC FOR
INTEL® ATOM™ Z3000 PROCESSOR
Company Confidential
Data Sheet
Version 3.A - Final
31-Jan-14
© 2014 Dialog Semiconductor GmbH
98 of 224
www.dialog-semiconductor.com
VREFDQ0/1 Electrical Specification:
Symbol
Parameter
Min
Typ
Max
Unit
Notes/Condition
Val
Input requirement
Vin
Main input voltage
1.80
V
Supplied by V1P8A
-
Output requirement
Vnom
Nominal output
voltage
0.6..1.2
V
Via VREFDQ0/1_VSEL
register
A
Vtol
Output voltage
tolerance
-5%
+5%
A
Cout
Output capacity
1
µF
-
Iout-DC
Output load
current
1
10
mA
A
IQSC
Quiescent current
(operational)
10
µA
Iout-DC = 0mA
D,E
IQSC
Quiescent current
(sleep)
2
µA
Iout-DC = 0mA
D,E
PSRR
Power supply
rejection ratio
50
dB
Noise = 0.1Vpp, 1-
10kHz, ½ Iout-DC
D.E
Vnoise
Output noise
50
100
µVRMS 10-100kHz, ½ Iout-DC
D,E
Table 55: Electrical Parameter for VREFDQ1/2
DC/DC Buck Regulator VDDQ
11.6.6
The high efficiency buck regulator supplies any type (1.5V/1.35V/1.25V) of DDR3 memory. The maximum output
current of VDDQ buck regulator is 2800mA
Figure 38: VDDQ Power Domain Block Diagram
11.6.6.1
Power States
Active State:
DA6021 VDDQ voltage rail can handle up to 2800mA max current. The usual average current is at 50mA to
500mA, but thermally able to handle 2800mA in peaks.. Optimized efficiency is achieved from 50mA to 500mA.
Automatically switching from PWM to PFM mode achieves the best power efficiency.
BUCK_VDDQ
1.24V
2.3A
VDDQ bus
VDDQ_FBP
VDDQ_FBN
VDDQ_VIN
4
C
VDDQ_GND
2
2
4
0.47µH
0.47µH
LX1
LX2
2
Φ
C
V1P2S bus
V1P2S_VIN
V1P2S
INT_SW_V1P2S/
LDO_V1P2S
C
V1P2SX bus
V1P2SX
INT_SW_V1P2SX
C



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