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Panasonic Electronic Components Datasheet

AN30181A Datasheet

General-purpose High Efficiency Power LSI

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AN30181A
VIN = 2.9V to 5.5V 2ch,0.8A
General-purpose High Efficiency Power LSI
FEATURES
DESCRIPTION
z High-speed response DC-DC Step-Down Regulator
circuit that employs hysteretic control system :
2-ch (1.2 V, 0.8 A / 1.8 V, 0.8 A)
z LDO : 1-ch (0.9 V, 10 mA)
z Built-in external Pch MOSFET gate drive circuits
z Built-in Reset function
z Built-in Under Voltage Lockout function (UVLO)
z 24pin Plastic Quad Flat Non-leaded Package
(Size : 4 × 4 mm, 0.5 mm pitch)
APPLICATIONS
High Current Distributed Power Systems such as
SSD (Solid State Drive), Cellular Phone, etc.
AN30181A is a power management LSI which has
DC-DC Step Down Regulators (2-ch) that employs
hysteretic control system.
By this system, when load current changes 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 use parts for phase
compensation, this IC realizes downsizing of set and
reducing in the number of external parts.
Output voltages are 1.2 V and 1.8 V. Each maximum
current is 0.8 A.
This LSI has a LDO circuit, external Pch-MOSFET gate
drive circuits and a reset circuit of input power supply
voltage.
SIMPLIFIED APPLICATION
3.3V
3.3V
10 kΩ
PVIN1
4.7 μF
PVIN2
AVIN
4.7 μF
4.7 μF
EN
PVIN1
PCNB RESET PCNT
DIS
FB1
LX1
PVIN2
AN30181A FB2
LX2
AVIN
BUF
VREG AGND1 AGND2 PGND1 PGND2
2.2 μH
2.2 μH
1.0 μF
1.0 μF
VOUT1
10 μF
VOUT2
10 μF
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
1
EFFICIENCY CURVE
[DC-DC1]
90
85
80
75
70
65
60
55
50
45
40
1
VIN=3.3V
VIN=5.0V
10 100
Load Current [mA]
1000
Condition : VIN=3.3V , 5.0V , Vout=1.2V , Cout=10μF , Lout=2.2μH
[DC-DC2]
100
95
90
85
80
75
70
65
60
55
50
1
VIN=3.3V
VIN=5.0V
10 100
Load Current [mA]
1000
Condition : VIN=3.3V , 5.0V , Vout=1.8V , Cout=10μF , Lout=2.2μH
Ver. BEB


Panasonic Electronic Components Datasheet

AN30181A Datasheet

General-purpose High Efficiency Power LSI

No Preview Available !

AN30181A
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Operating free-air temperature
Operating junction temperature
Storage temperature
Input Voltage Range
Output Voltage Range
ESD
Symbol
VIN
Topr
Tj
Tstg
EN,FB1,FB2
LX1,LX2,PCNT,PCNTB,DIS,
RESET,BUF,VREG
HBM (Human Body Model)
Rating
6.0
– 40 to + 85
– 40 to + 150
– 55 to + 150
– 0.3 to (VIN + 0.3)
– 0.3 to (VIN + 0.3)
2
Unit Notes
V
*1
*3
°C *2
°C *2
°C *2
V
*1
*3
V
*1
*3
kV -
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:VIN is voltage for AVIN, PVIN1 = PVIN2,(VIN + 0.3) V must not be exceeded 6 V.
POWER DISSIPATION RATING
PACKAGE
θJA
9pin Wafer level chip size package
(WLCSP Type)
84.9 °C /W
PD(Ta=25°C)
1.472 W
PD(Ta=85°C)
0.765 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
2 Ver. BEB


Part Number AN30181A
Description General-purpose High Efficiency Power LSI
Maker Panasonic
Total Page 27 Pages
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