AN30183A
600mA Synchronous DC-DC Step Down Regulator (1ch)
300mA LDO Regulator (4ch)
Multi Power Supply (High Efficiency Power LSI)
FEATURES
High-Speed Response DC-DC Step Down Regulator
Circuit that employs Hysteretic System
DC-DC Step Down Regulator : 1-ch
Input voltage Range VBAT :2.5V to 5.5V
DVDD : 1.7V to 3.0V
Output voltage Range 0.8 V to 2.4 V
Up to 600 mA Output Current
LDO Regulator : 4-ch
Input voltage Range VBAT :2.5V to 5.5V
DVDD : 1.7V to 3.0V
Output voltage Range 1.0 V to 3.3 V
Up to 300 mA Output Current
I
2
C control (2-slave address selectable)
20 pin Wafer Level Chip Size Package (WLCSP)
(Size : 1.56 mm
×
2.06 mm, 0.4 mm Pitch)
DESCRIPTION
AN30183A is a multi power supply LSI which has High-
Speed Response DC-DC Step Down Regulators (1-ch)
and LDO Regulators (4-ch).
By this DC-DC system, when load current charges
suddenly, it responds at high speed and minimizes the
changes of output voltage.
Since it is possible to use capacitors with small
capacitance and it is unnecessary to add external parts
for system phase compensation, this IC realizes
downsizing of set and reducing in the number of external
parts.
The output DC of each power supply is variable by I
2
C
control.
APPLICATIONS
Mobile phone, Portable appliance, etc
SIMPLIFIED APPLICATION
DDVBAT1
DVDD
0.1µF
SDA
SCL
ASEL
REGCNT
AN30183A
VB
VIN2
4.7µF
4.7µF
4.7µF
100
EFFICIENCY CURVE
AN30183A DCDC1 Efficiency
Efficiency [%]
LX1
FB1
DDGND1
DCDCOUT1
1µH
4.7µF
90
80
70
60
50
40
30
20
10
0
1
10
100
1000
Vout=0.8V
Vout=1.2V
Vout=1.8V
Vout=2.4V
VLDO3
1µF
1µF
VLDO4
VLDO1
1µF
VLDO2
1µF
VREG REF RESETLDO1ON AGND
1µF
1µF
Load Current [mA]
Notes) This application circuit is an example. The operation
of mass production set is not guaranteed. You should
perform enough evaluation and verification on the
design of mass production set. You are fully
responsible for the incorporation of the above
application circuit and information in the design of
your equipment.
Publication date: October 2012
Condition )
DDVBAT1 = DDVBAT2 = VB = VIN2 = 3.7V
Lo = 1.0 µH, Cout = 4.7 µF
1
Ver. AEB
AN30183A
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
DVDD
Output Current
Operating free-air temperature
Operating junction temperature
Storage temperature
I
IN
T
opr
T
j
T
stg
RESET,LDO1ON,FB1,
REGCNT
Input Voltage Range
SCL,SDA,ASEL
Output Voltage Range
ESD
LX1,VREG,REF,SDA
LDO1,LDO2,LDO3,LDO4
HBM (Human Body Model)
– 0.3 to DVDD + 0.3
– 0.3 to V
VBAT
+ 0.3
2
V
V
kV
*1
*3
*1
*3
—
3.6
—
– 30 to + 85
– 30 to + 150
– 55 to + 150
– 0.3 to V
VBAT
+ 0.3
V
A
°C
°C
°C
V
*1
*1
*2
*2
*2
*1
*3
Symbol
VB,VIN2,DDVBAT1
Rating
6.0
Unit
V
Notes
*1
Notes) Do not apply external currents and voltages to any pin not specifically mentioned.
This product may sustain permanent damage if subjected to conditions higher than the above stated absolute maximum rating.
This rating is the maximum rating and device operating at this range is not guaranteeable as it is higher than our stated
recommended operating range. When subjected under the absolute maximum rating for a long time, the reliability of the product
may be affected.
*1:The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
*2:Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25
°C.
*3:V
VBAT
is voltage for DDVBAT1 = VB = VIN2, (V
VBA
+ 0.3) V must not be exceeded 6 V.
V
DVDD
is voltage for DVDD, (V
DVDD
+ 0.3) V must not be exceeded 3.6 V.
POWER DISSIPATION RATING
PACKAGE
20 pin Wafer level chip size Package
(WLCSP Type)
θ
JA
359.0
°C
/ W
PD ( Ta = 25
°C)
0.348 W
PD ( Ta = 85
°C
)
0.181 W
Notes
*1
Note). For the actual usage, please refer to the PD-Ta characteristics diagram in the package specification, follow the power supply
voltage, load and ambient temperature conditions to ensure that there is enough margin and the thermal design does not
exceed the allowable value.
*1:Glass Epoxy Substrate ( 4 Layers ) [ Glass-Epoxy: 50 X 50 X 0.8 t ( mm ) ]
Die Pad Exposed , Soldered.
CAUTION
Although this has limited built-in ESD protection circuit, but permanent damage may occur on it.
Therefore, proper ESD precautions are recommended to avoid electrostatic damage to the MOS gates
2
Ver. AEB
AN30183A
RECOMMENDED OPERATING CONDITIONS
Parameter
Pin Name
VB
Supply voltage range
VIN2
DDVBAT1
DVDD
RESET
LDO1ON
REGCNT
Input Voltage Range
FB1
SCL
SDA
ASEL
LX1
VREG
REF
Output Voltage Rang
SDA
VLDO1
VLDO2
VLDO3
VLDO4
Min.
2.5
2.5
2.5
1.7
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
Typ.
3.7
3.7
3.7
1.85
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max.
5.5
5.5
5.5
3.0
V
VBAT
+ 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
DVDD + 0.3
DVDD + 0.3
DVDD + 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
DVDD + 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
V
VBAT
+ 0.3
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Notes
*1
*1
*1
*1
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
Note) Do not apply external currents and voltages to any pin not specifically mentioned.
Voltage values, unless otherwise specified, are with respect to GND. GND is voltage for AGND = DDGND1
V
VBAT
is voltage for DDVBAT1 = VB = VIN2.
*1 : The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
*2 : (V
VBAT
+ 0.3) V must not be exceeded 6 V. (DVDD + 0.3) V must not be exceeded 3.6 V.
3
Ver. AEB
AN30183A
ELECRTRICAL CHARACTERISTICS
V
VBAT
(DDVBAT1 = VB = VIN2) = 3.7V, DVDD = 1.85V
DC-DC : Co = 4.7 µF, Lo = 1 µH / LDO : Co =1.0 µF
T
a
= 25
°C ±
2
°C
unless otherwise noted.
Limits
Parameter
Consumption current
Consumption current 1 on active
Consumption current 2 on active
Static consumption current
IBAT_1 only LDO1 (PS mode) ON
IBAT_2 DCDC1, LDO1-4 = ON
IBAT_3
DCDC1, LDO1-4 = OFF
RESET = “L”
—
—
—
10
240
0.1
20
400
1.0
μA
μA
μA
—
—
—
Symbol
Conditions
Min
Typ
Max
Unit
Notes
4
Ver. AEB
AN30183A
ELECRTRICAL CHARACTERISTICS
(Continued)
V
VBAT
(DDVBAT1 = VB = VIN2) = 3.7V, DVDD = 1.85V
DC-DC : Co = 4.7 µF, Lo = 1 µH / LDO : Co =1.0 µF
T
a
= 25
°C ±
2
°C
unless otherwise noted.
Limits
Parameter
Symbol
Conditions
Min
LDO1 – 4 ( Normal Mode ) - (LDO Regulator)
Output voltage
Output current
Load regulation
Line regulation
VLDO
ILDO
DVLDO
VLDOLR
ILDO = – 150 mA
Vout = 1.85 V setting
—
Δ
ILDO = – 10
μA →
– 150 mA
VB = 3.1 V
→
4.5 V
ILDO = – 150 mA
Vout = 1.85 V setting
VB = 3.7 V
VLDO = 0 V
1.803
300
–5
– 10
1.850
—
20
0
1.897
—
50
10
V
mA
mV
mV
—
—
—
—
Typ
Max
Unit
Notes
Short-circuit current
ISTLDO
35
100
255
mA
—
LDO1 – 4 ( Power Save Mode ) - (LDO Regulator)
Output voltage
Output current
Load regulation
VLDOPS
ILDOPS
DVLDOPS
ILDO = – 5 mA
Vout = 1.85 V setting
—
Δ
ILDO = – 10
μA →
– 5 mA
1.803
10
–5
1.850
—
20
1.897
—
50
V
mA
mV
—
—
—
Line regulation
VB = 3.1 V
→
4.5 V
VLDOLRPS ILDO = – 5 mA
Vout = 1.85 V setting
– 25
0
25
mV
—
5
Ver. AEB
模拟与混合信号
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