A7539
DC-DC CONVERTER BOOST (STEP-UP)
AiT Semiconductor Inc.
www.ait-ic.com
0.8V STARTUP, 1A PFM CONTROL SYNCHRONOUS
ABSOLUTE MAXIMUM RATINGS
VMAX, Input voltage
Maximum voltage supply for VOUT and VLX pin
Maximum current in LX pin
6.5V
1000mA
ILX(MAX), Current
SOT-23 maximum power dissipation
SOT-25 maximum power dissipation
Operating Ambient Temperature
Storage Temperature
250mW
PD, Power dissipation
250mW
Tmin-max, Temperature
TSTORAGE, Temperature
VESD, ESD
-20°C~85°C
-40°C~165°C
2000V
Body static pressure values
Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and
operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
TA=25℃, unless otherwise specified
Parameter
Output Voltage Accuracy
Maximum Input Voltage
Start Voltage
Symbol
ΔVOUT
VIN(MAX)
VSTART
VHOLD
DCOSC
η
Conditions
Min.
-2.5
0.9
Typ.
Max.
2.5
Unit
%
6.5
V
ILOAD=1mA,VIN:0→2V
ILOAD=1mA,VIN:2→0V
0.8
V
Hold Voltage
0.6
V
Oscillation Signal Duty Cycle
Efficiency
78
94
%
90
800
15
%
Limit Current
ILIMIT
600
1000
mA
μA
Input Current (No load)
INO-LOAD
VIN=1.8V,VOUT=3.0V
REV1.1
- JUN 2014 RELEASED, JUN 2018 UPDATED -
- 3 -
AITSEMI [ AiT Semiconductor ]
