AiT Semiconductor Inc.
www.ait-ic.com
A7530
DC-DC CONVERTER BOOST(STEP-UP)
HIGH EFFICIENCY LOW NOISE PFM
REV3.1 - JUN 2007 RELEASED, NOV 2017 UPDATED - - 1 -
DESCRIPTION
FEATURES
A7530 series are CMOS-based PFM step-up DC-DC
Converter. The converter can start up by supply
voltage as low as 0.8V, and capable of delivering
maximum 200mA output current at 3.3V output with
1.8V input Voltage. Quiescent current dra
wn from
power source is as low as 5.5uA. All of these features
make A7530 series be suitable for the portable
devices, which are supplied by a single battery to
four-cell batteries.
To reduce the noise caused by the switch regulator,
A7530 is well conside
rate in circuit design and
manufacture. So that the interferer to other circuits by
the device is reduced greatly.
A7530 integrates stable reference circuits and
trimming technology, so it can afford high precision
and low temperature-drift coefficient of the output
voltage.
The A7530 is available in SOT-23, SOT-25 and
SOT89-3 packages.
ORDERING INFORMATION
Package Type
Part Number
SOT-23
SPQ : 3,000pcs/Reel
E3
A7530E3R-XXY
A7530E3VR-XXY
SOT-25
SPQ : 3,000pcs/Reel
E5
A7530E5R-XXY
A7530E5VR-XXY
SOT89-3
SPQ : 1,000pcs/Reel
K3
A7530K3R-XXY
A7530K3VR-XXY
Note
XX: Output Voltage
Y: Function Type
1: W/O Enable Circuit
(SOT89-3、SOT-23)
2: With Enable Circuit
(SOT-25)
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Deliver 200mA at 3.3V Output voltage with 1.8V
input Voltage
Low start-up voltage : 0.8V
(when the output
current is 1mA)
Output voltage can be adjusted from 2.5V～6.0V
(In 0.1V step)
Output voltage accuracy 2％
Low temperature-drift coefficient of the output
voltage 100ppm/℃
Only three external components are necessary:
An inductor, a Schottky diode and an output filter
capacitor
High power conversion efficiency 85％
Low quiescent current drawn from power source
<5.5uA
Available in SOT-23, SOT-25 and SOT89-3
Packages
APPLICATION
Power Source for PDA, DSC, MP3 Player,
Electronic toy and wireless mouse
Power Source for a Single or Dual-cell
Battery-Powered Equipments
Power Source for LED
TYPICAL APPLICATION
AiT Semiconductor Inc.
www.ait-ic.com
A7530
DC-DC CONVERTER BOOST(STEP-UP)
HIGH EFFICIENCY LOW NOISE PFM
REV3.1 - JUN 2007 RELEASED, NOV 2017 UPDATED - - 2 -
PIN DESCRIPTION
Top View
Top View
Top View
Symbol
Function
SOT-23
SOT-25
SOT89-3
1 4 1 GND Ground
2 2 2 OUT Output Feedback Pin, Power supply for internal
3 5 3 LX Switching Pin
- 1 - CE Chip Enable (Active high)
- 3 - NC No Connection