A7115
AiT Semiconductor Inc.
DC-DC CONVERTER
www.ait-ic.com
1.5MHZ, 1.5A SYNCHRONOUS STEP-DOWN CONVERTER
ELECTRICAL CHARACTERISTICSNOTE3
VIN =VRUN= 3.6V, TA = 25°C, unless otherwise noted.
Parameter
Input Voltage Range
Input DC Supply Current
Active Mode
Conditions
Min.
2.5
Typ.
Max.
6.5
Unit
V
VFB=0.5V or VOUT=90%
FB =0V, VIN=4.2V
300
0.1
400
μA
Shutdown Mode
V
0.1
TA = +25°C
0.5880 0.6000 0.6120
0.5865 0.6000 0.6135
0.5820 0.6000 0.6180
±30
V
V
Regulated Feedback Voltage
VFB Input Bias Current
TA =0°C ≤ TA ≤ 85°C
TA =-40°C ≤ TA ≤ 85°C
VFB = 0.65V
V
nA
%/V
%/V
%
Reference Voltage Line Regulation VIN=2.5V to 5.5V, IOUT=10mA
0.5
0.5
0.5
0.60
0.60
Output Voltage Line Regulation
Output Voltage Load Regulation
VIN=2.5V to 5.5V, IOUT=10mA
IOUT=10 to 1500mA
VIN =3V, VFB=0.5V or
Peak Inductor Current
2.5
1.2
3.5
A
VOUT=90% ,Duty Cycle <35%
Oscillator Frequency
VFB =0.6V or VOUT=100%
ISW=300mA
1.5
135
95
1.8
200
150
MHz
mΩ
mΩ
RDS(ON) of P-CH MOSFET
RDS(ON) of N-CH MOSFET
ISW=-300mA
V
RUN=0V, VSW=0V or 5V,
SW Leakage
±0.01
1.3
±1
μA
mS
V
VIN=5V
Soft start
RUN Threshold Low
RUN Threshold High
RUN Leakage Current
Thermal Shutdown
0.6
±1
-40°C ≤ TA ≤ 85°C
1.5
±0.01
165
μA
°C
NOTE3: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
REV1.0
- APR 2013 RELEASED, NOV 2014 UPDATED -
- 4 -
AITSEMI [ AiT Semiconductor ]
