AMS1318 AMS [Advanced Monolithic Systems Ltd], AMS1318 Datasheet - Page 4

• Manufacturer Part Number: AMS1318
• Description: Cellular and Smart Phones PDAs
• Manufacturer: AMS [Advanced Monolithic Systems Ltd]

■ Electrical Characteristics
■ Test Circuits
Vin
Vin
Feedback Voltage
Input Voltage Range
Load regulation
Line regulation
Efficiency
CE ”Low” voltage
CE ”High” voltage
Stand-by Current
Quiescent Current
Output Current Limit
PFM switching point
Oscillation Frequency
Maximum Duty Circle
VIN=3.6V ,CIN=4.7uF ,CL=10uF ,L=2.2uH
Parameters：LX=2.2uH, C1=4.7uF, C2=22pF, C3=10uF.
According to the required output voltage regulate R1, R2, so V FB = 0. 6 V.
C1
Parameter
C1
I
IN
VIN
CE
VIN
CE
GND
GND
Circuit 1
Circuit3
FB
LX
FB
MAXDTY
△VOUT
Symbol
VOUT
VCEH
FOSC
VCEL
Advanced Monolithic Systems http://www.ams-semitech.com
EFFI
ISTB
VFB
ILIM
VIN
IDD
IL
L
R2
R1
IL
IL=300mA
VIN=2.7V；IL=100mA
VCE=0V、VIN=3.6V
VFB=0.6V*0.9
VIN=3.6V、VOUT=1.8V
MAX
C2
=600mA
C3
Cinditons
Iload
-
-
-
-
-
4
Vin
0.59
MIN
100
1.8
－
－
2
0
-
-
C1
Vout=0.6Vx(1+R1/R2)
1200
TYP
0.45
200
150
0.6
0.5
1.4
92
-
-
-
VIN
CE
(Ta=25℃, unless otherwise noted)
GND
MAX
Circuit 2
0.61
1.4
－
6
1
-
-
-
-
LX
FB
AMS1318
Units
MHz
mA
mA
FOSC
uA
uA
%
%
%
%
V
V
V
R2
R1
Circuits
Test
1
3
2
C2
C3