APW7301
Recommended Operating Conditions (Note 4)
Symbol
Parameter
Range
4.5 ~ 24
0.925~20
0~3
Unit
V
VIN
VIN Supply Voltage
VOUT
IOUT
TA
Converter Output Voltage
Converter Output Current
Ambient Temperature
Junction Temperature
V
A
-40 ~ 85
-40 ~ 125
oC
oC
TJ
Note 4 : Refer to the typical application circuit.
Electrical Characteristics
Refer to the typical application circuits. These specifications apply over VIN=12V, VOUT=3.3V, VEN=3V and TA=25°C.
APW7301
Symbol
Parameter
Test Conditions
Unit
Min.
Typ.
Max.
SUPPLY CURRENT
IVIN
VIN Supply Current
VFB=1V, VEN=3V, LX=NC
VEN=0V
-
-
1.9
0.3
-
-
mA
IVIN_SD VIN Shutdown Supply Current
POWER-ON-RESET (POR)
VIN POR Voltage Threshold
VIN POR Hysteresis
mA
VIN Rising
3.8
-
4.05
0.3
4.4
-
V
V
REFERENCE VOLTAGE
VREF
Reference Voltage
Regulated on FB pin
0.9
0.925
0.943
V
OSCILLATOR AND DUTY CYCLE
FOSC
Oscillator Frequency
Foldback Frequency
Maximum Converter’s Duty
Minimum On Time
300
340
110
90
380
kHz
kHz
%
VFB=0V
-
-
-
-
-
-
VFB=0.925V
(Note 5)
220
ns
PFM MODE OPERATION
-
-
IPK_PFM PFM Mode Current Limit
0.8
0.6
-
-
A
A
IPK_TH
PWM to PFM Inductor Peak Threshold
POWER MOSFET
High/low Side MOSFET On Resistance
-
-
110
-
-
mW
mA
High/Low Side MOSFET Leakage
Current
VEN=0V, VLX=0V
10
CURRENT-MODE PWM CONVERTER
GEA
Error Amplifier Transconductance
Error Amplifier Voltage Gain
-
-
820
80
-
-
mA/V
V/V
Switch Current to COMP Voltage
Transresistance
-
5.2
-
A/V
Copyright ã ANPEC Electronics Corp.
3
www.anpec.com.tw
Rev. A.2 - Apr., 2013
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
