Doc No.
TA4-EA-06146
Revision.
4
Product Standards
AN30180AA
http://www.semicon.panasonic.co.jp/en/
1.2 A Synchronous DC-DC Step Down Regulator
(V
IN
= 2.5 V to 5.5 V, V
OUT
= 1.20 V to 3.30 V)
FEATURES
Wide output voltage range : 1.20 V to 3.30 V
Input voltage range : 2.5 V to 5.5 V
Maximum Output Current : 1.2 A
Load transient response is fast
Output current limit control of 1.8 A to prevent
Excessive current flows
High efficiency over a wide load current area by
DCM (discontinuous conductive mode) operation
at light loads, CCM (continuous conductive mode)
operation in heavy loads those two modes can be
automatically switched
Switching frequency of 2.6 MHz during CCM.
100 % duty operation when input voltage goes
down to output voltage.
Built-in Under Voltage Lockout (UVLO),
Thermal Shut Down (TSD),
Over Current Protection (OCP),
Short Circuit Protection (SCP)
9 pin Wafer level chip size package (WLCSP)
Size : 1.46mm
1.46 mm (0.5 mm pitch)
DESCRIPTION
AN30180AA is a synchronous DC-DC Step Down
Regulator and employs the hysteretic control system.
By this 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.
Output voltage is adjustable by control pin.
Maximum current is 1.2 A.
APPLICATIONS
High Current Distributed Power Systems such as
power amplifier in cellular phone, camera etc.
SIMPLIFIED APPLICATION
EFFICIENCY CURVE
100
V
IN
PVIN
CNT1
CNT2
90
80
Ｅ ½½½½½½½½½ [%]
FB
4.7
µF
70
60
50
40
30
20
10
0
1
10
Load Current [mA]
100
1000
VIN=2.5V
VIN=3.7V
VIN=5.5V
AVIN
V
OUT
4.7
µF
AN30180AA
EN
AGND
PGND
LX
L
O
4.7
µF
Note : The application circuit is an example. The operation of
the mass production set is not guaranteed. Sufficient
evaluation and verification is required in the design of
the mass production set. The Customer is fully
responsible for the incorporation of the above
illustrated application circuit in the design of the
equipment.
Condition :
V
IN
= 2.5 V, 3.7 V, 5.5 V, V
OUT
= 1.20 V
C
OUT
= 4.7µF , L
OUT
= 1.0 µH
Page 1 of 15
Established : 2012-12-06
Revised
: 2013-10-01
Doc No.
TA4-EA-06146
Revision.
4
Product Standards
AN30180AA
ORDERING INFORMATION
Order Number
AN30180AA-PR
Feature
Maximum Output Current : 1.2 A
Package
9 pin WLCSP
Output Supply
Emboss Taping
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Operating free-air temperature
Operating junction temperature
Storage temperature
Input Voltage Range
Output Voltage Range
ESD
Symbol
V
IN
T
opr
T
j
T
stg
V
FB
, V
EN
, V
CTL1
, V
CTL2
V
LX
HBM
Rating
6.0
– 30 to + 85
– 40 to + 150
– 55 to + 150
– 0.3 to (V
IN
+ 0.3)
– 0.3 to (V
IN
+ 0.3)
2
Unit
V
C
C
C
V
V
kV
Notes
*1
*2
*2
*2
*1
*3
*1
*3
Notes : 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 guaranteed 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.
V
IN
is voltage for AVIN, PVIN. V
IN
= AV
IN
= PV
IN
.
Do not apply external currents and voltages to any pin not specifically mentioned.
*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 T
a
= 25
C.
*3 : (V
IN
+ 0.3) V must not exceed 6 V.
Page 2 of 15
Established : 2012-12-06
Revised
: 2013-10-01
Doc No.
TA4-EA-06146
Revision.
4
Product Standards
AN30180AA
POWER DISSIPATION RATING
PACKAGE
9 pin Wafer level chip size package
(WLCSP Type)
JA
436
C
/W
PD(Ta=25C)
0.286 W
PD(Ta=85C)
0.148 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 0.8t(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
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply voltage range
Symbol
V
IN
V
FB
Input Voltage Range
V
EN
V
CNT1
V
CNT2
Output Voltage Range
V
LX
Min.
2.5
– 0.3
– 0.3
– 0.3
– 0.3
– 0.3
Typ.
3.7
—
—
—
—
—
Max.
5.5
V
IN
+ 0.3
V
IN
+ 0.3
V
IN
+ 0.3
V
IN
+ 0.3
V
IN
+ 0.3
Unit
V
V
V
V
V
V
Notes
*1
*2
*3
*3
*3
*3
*3
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, PGND. AGND = PGND
Vin is voltage for AVIN, PVIN. V
IN
= AV
IN
= PV
IN
*1 : Please set the rising time of power input pin to the following range.
In addition, please input the voltage with the rising time which has margin enough in consideration of the variation
in external parts.
*2 : The values under the condition not exceeding the above absolute maximum ratings and the power dissipation.
*3 : (V
IN
+ 0.3) V must not be exceeded 6 V.
0V
100 µs < Tr < 1.5 ms
(Tr is the rise time from 0 V to the setup voltage of V
IN
.)
Page 3 of 15
Established : 2012-12-06
Revised
: 2013-10-01
Doc No.
TA4-EA-06146
Revision.
4
Product Standards
AN30180AA
ELECTRICAL CHARACTERISTICS
C
OUT
= 4.7 µF, L
OUT
= 1.0 µH, V
OUT
Setting = 1.20 V , V
IN
= AV
IN
= PV
IN
= 3.7 V,
T
a
= 25
C
2
C
unless otherwise noted.
Limits
Min
Typ
Max
Parameter
Current Consumption
Current Consumption
OFF Current Consumption
DC-DC Characteristics
Output Voltage Setting 1
Output Voltage Setting 2
Output Voltage Setting 3
Output Voltage Setting 4
Symbol
Conditions
Unit
Notes
I
INQ
I
STB
I
OUT
= 0 A, V
OUT
= 1.20 V
EN = "L"
—
—
40
0
80
1
µA
µA
—
—
V
OUT1
V
OUT2
V
OUT3
V
OUT4
REGIN
CNT1 = "L", CNT2 = "L",
I
OUT
= 600 mA
CNT1 = "H", CNT2 = "L",
I
OUT
= 600 mA
CNT1 = "L" , CNT2 = "H",
I
OUT
= 600 mA
CNT1 = "H" , CNT2 = "H",
I
OUT
= 600 mA
V
IN
= 2.5 V to 5.5 V,
V
OUT
= 1.20 V,
I
OUT
= 600 mA
V
OUT
= 1.20 V,
I
OUT
= 10 µA to 1.2 A
—
—
I
OUT
= 600mA (CCM)
Load resistance = 12
,
Settling time to reach 90 % of
setting voltage from EN rising
edge
EN = "L"
1.164
1.310
1.790
3.200
1.200
1.350
1.850
3.300
1.236
1.390
1.910
3.400
V
V
V
V
—
—
—
—
Line Regulation
—
0.25
0.75
%/V
—
Load Regulation
Pch-MOS ON Resistance
Nch-MOS ON Resistance
SW Frequency
REGLD
RONP
RONN
FSW
—
—
—
2.0
3.3
0.2
0.2
2.6
5.8
0.4
0.4
3.2
%
MHz
—
—
—
—
Rising Time
TSTU
—
—
120
µs
—
Output discharge resistance
RDIS
—
10
20
—
Page 4 of 15
Established : 2012-12-06
Revised
: 2013-10-01
Doc No.
TA4-EA-06146
Revision.
4
Product Standards
AN30180AA
ELECTRICAL CHARACTERISTICS (Continued)
C
OUT
= 4.7 µF, L
OUT
= 1.0 µH, V
OUT
Setting = 1.20 V, V
IN
= AV
IN
= PV
IN
= 3.7 V,
T
a
= 25
C
2
C
unless otherwise noted.
Limits
Min
Typ
Max
Parameter
Logic Pin Characteristics
EN Control Voltage L
EN Control Voltage H
EN Leak Current
CNT1 Control Voltage L
CNT1 Control Voltage H
CNT1 Leak Current
CNT2 Control Voltage L
CNT2 Control Voltage H
CNT2 Leak Current
Under Voltage Lock out (UVLO)
UVLO Detection Voltage
UVLO Hysteresis Voltage
Symbol
Conditions
Unit
Notes
VENTL
VENTH
IENL
VCNT1
L
VCNT1
H
—
—
V
IN
= V
EN
= 5.5 V
—
—
—
1.5
–1
—
V
IN
–
0.3
–1
—
V
IN
–
0.3
–1
—
—
0
—
—
0
—
—
0
0.3
—
1
0.3
—
1
0.3
—
1
V
V
µA
V
V
µA
V
V
µA
—
—
—
—
—
—
—
—
—
ICNT1L V
IN
= V
CNT1
= 5.5 V
VCNT2
L
VCNT2
H
—
—
ICNT2L V
IN
= V
CNT2
= 5.5 V
VUON
VUHY
V
IN
rising to Start Operation
—
2.3
25
2.4
75
2.5
125
V
mV
—
—
Page 5 of 15
Established : 2012-12-06
Revised
: 2013-10-01
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