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DA6021 Datasheet(PDF) 92 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) 92 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
92 of 224
www.dialog-semiconductor.com
V1P05S_CTRL.
SLP_S3_B
V1P05S
V1P05S_SEL
V1P05S_EN
1
0
1
Off
1
1
1
On
x
X
0
Off
Table 46: V1P05S Truth Table
DC/DC Buck Regulator V1P8_A
11.6.5
The high efficiency buck regulator supplies 1.8V I/Os, USB, V1P8U, V1P8S and V1P8SX.The maximum output
current of the 1P8A buck regulator is 1627mA
11.6.5.1
Power States
Active State:
DA6021 V1P8A voltage rail can handle up to 1627mA max current. The usual average current workload is at
8mA to 260mA, but thermally able to handle 1627mA in peaks. Optimized efficiency is achieved from 8mA to
260mA. Automatically switching from PWM to PFM mode achieves the best power efficiency.
Figure 36: Buck V1P8A Power Rail Block Diagram
S0ix State:
When the SoC enters the S0ix state, SLP_S0ix is held low. DA6021 turns the V1P8A buck regulator into low
power mode and disables all un-necessary blocks, reducing the power requirements. DA6021 exits this power
saving mode within 5µs after SoC asserts the SLP_S0ix signal to high.
S3 & S4 States:
In S3 & S4 mode the average current of V1P8A is expected to be 4mA & 25µA.
BUCK_V1P8A
1.817V
1.7A
V1P8A bus
V1P8A_FBP
V1P8A_FBN
V1P8A_VIN
2
C
V1P8A_GND
2
2
0.47µH
LX
V1P8U bus
V1P8U_EN
V1P8U_FB
EXT_SW_V1P8U
V1P8SX bus
V1P8SX
INT_SW_V1P8SX
C
V1P8S bus
V1P8S_VIN
V1P8S
INT_SW_V1P8S
C
V1P2A bus
V1P2A
LDO_V1P2A
C
VREFQ1 bus
VREFDQ1
LDO_VREFDQ1
C
VREFQ2 bus
VREFDQ2
LDO_VREFDQ2
C
C



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