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PDF A7530 Data sheet ( Hoja de datos )
| Número de pieza | A7530 | |
| Descripción | 350KHz PFM STEP-UP DC-DC CONVERTER | |
| Fabricantes | AiT | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de A7530 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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AiT Semiconductor Inc.
www.ait-ic.com
A7530
350KHz PFM STEP-UP DC-DC CONVERTER
INTERNAL SWITCH W/HIGH EFFICIENCY AND LOW NOISE
DESCRIPTION
FEATURES
A7530 is CMOS-based PFM step-up DC-DC converter.
Deliver 200mA at 3.3V Output Voltage
The converter can start up by supply voltage as low as 0.8V
with 1.8V Input Voltage
input Voltage. Quiescent current drawn from power source
is as low as 7uA. All of these features make A7530 be
suitable for the portable devices, which are supplied by a
single battery to four-cell batteries.
Low start-up voltage(when the output
current is 1mA ) 0.8V
The converter output voltage can be
adjusted from 2.5V~6.0V (In 0.1V step)
To reduce the noise caused by the switch regulator, A7530
is well considerate in circuit design and manufacture. So
that the interferer to other circuits by the device is reduced
greatly.
Output voltage accuracy (±2%)
Low temperature-drift coefficient of the
output voltage (±100ppm/℃)
Only three external components are
necessary: An inductor, a Schottky diode
A7530 integrates stable reference circuits and trimming
technology, so it can afford high precision and low
temperature-drift coefficient of the output voltage.
and an output filter capacitor
High power conversion efficiency (85%)
Low quiescent current drawn from power
source (<7uA)
A7530 can be switch on or off easily by CE pin, to minimize
Available in SOT-25 and SOT-89 package
the standby supply current in SOT-25 package.
APPLICATION
A7530 is available in SOT-25 and SOT-89 packages.
ORDERING INFORMATION
Package
Type
Part Number
SOT-25
E5 A7530E5R-XXY
SOT-89-3
K3 A7530K3R-XXY
Note
XX: Output Voltage
25=2.5V, 33=3.3V…60= 6.0V
Y: Function Type
1: W/O Enable Circuit
2: With Enable Circuit
R: Tape & Reel
AiT provides all Pb free products
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
REV1.2 - JUN 2007 RELEASED – JUN 2008 REVISED -
1
Free Datasheet http://www.Datasheet4U.com
1 page  
AiT Semiconductor Inc.
www.ait-ic.com
A7530
350KHz PFM STEP-UP DC-DC CONVERTER
INTERNAL SWITCH W/HIGH EFFICIENCY AND LOW NOISE
TYPICAL PERFORMANCE CHARACTERISTICS
CIN=47uF, COUT=100uF, L=10uH, TOPT=25oC, unless otherwise noted.
1. Output Voltage vs. Output Current
A7530K3-251
2. Output Voltage vs. Output Current
A7530K3-331
3. Output Voltage vs. Output Current
A7530K3-401
4. Efficiency vs. Output Current
A7530K3-251
5. Efficiency vs. Output Current
A7530K3-331
6. Efficiency vs. Output Current
A7530K3-401
REV1.2 - JUN 2007 RELEASED – JUN 2008 REVISED -
5
Free Datasheet http://www.Datasheet4U.com
5 Page 
AiT Semiconductor Inc.
www.ait-ic.com
A7530
350KHz PFM STEP-UP DC-DC CONVERTER
INTERNAL SWITCH W/HIGH EFFICIENCY AND LOW NOISE
TEST CIRCUITS:
a). Output voltage test circuit ( ILOAD= 1mA)
b). Start-up voltage test circuit ( ILOAD= 1mA)
c). Hold-on voltage test circuit ( ILOAD= 1mA)
REV1.2 - JUN 2007 RELEASED – JUN 2008 REVISED -
11
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet A7530.PDF ] | |
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