AN33016UA Datasheet, PDF (1/19 Pages) Panasonic Semiconductor – VIN = 5 to 39 V, VOUT = 1.2 to 9 V, 1-channel DC-DC Step down Regulator integrated N-channel Power MOSFET

AN33016UA
VIN = 5 to 39 V, VOUT = 1.2 to 9 V, 1-channel DC-DC Step down
Regulator integrated N-channel Power MOSFET
FEATURES
z 1-channel DC-DC Step Down Regulator Circuit that
employs Voltage Mode Switching Control System
z Internal reference voltage is within ±1% accuracy
z Input Voltage Range : PVCC , VCC: 5 V ~ 39 V
z Adjustable Output Voltage Range with external
Resistor : 1.2 V ~ 9 V
z Adjustable Switching Frequency with external
Resistor : 200 kHz ~ 2 MHz
z Standby mode consumes less than 1 µA current
z Output over voltage protection function
z Output ground short protection function
z Over current protection with adjustable threshold.
z Under voltage lockout function (VREG)
z Thermal Shut Down function
z Adjustable soft-start function
z SSOP024-P-0300F
( Size : 7.8 mm X 8.1 mm, 0.65 mm pitch ),
24pin Plastic Shrink Small Outline Package (SSOP
Type)
DESCRIPTION
AN33016UA is 1-channnel DC-DC Step down Regulator
integrated N-channel Power MOSFET and employs the
voltage mode switching control system.
This IC can be operated with wide input voltage range
and is build in several protection functions, so this IC can
provide high reliability power supply system.
Since it is possible to use up to 2 MHz switching
frequency and it is unnecessary to add external parts for
High Side Switch, this IC realizes downsizing of set and
reducing in the number of external parts.
Output voltage is adjustable by user.
Maximum current is 1.5 A.
APPLICATIONS
High Input Voltage Power Systems such as
・Car-Audio system
・Car-Navigation system
・OA Equipment
・Home Appliances etc.
SIMPLIFIED APPLICATION
PVIN
EN BTVCC VCC
VCC_S
1.0μF
130kΩ
0.1μF
VREG
PVCC1/2
AN33016UA ^BT
RT
SS
SGND PGND
LX1/2
FB COMP
24pF
20mΩ
0.1μF
DCDCOUT
22μF
7.5kΩ 2.2nF
7.5kΩ
30kΩ
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.
100
90
80
70
60
50
40
30
20
10
0
0
EFFICIENCY CURVE
VCC=6V
VCC=12V
VCC=39V
300
600
900
1200
1500
Iload (mA)
Condition )
Vin = 6 , 12 , 25 V, Vout = 5 V,
Lo = 10 µH, Co = 22 µF, Frequency = 490 kHz
Publication date: October 2012
1
Ver. AEB