AMC2596
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
Temperature Range
Supply Voltage
-40°C≦TJ≦+125°C
4.5V to 40V
Unless otherwise specified, these specifications apply VIN = 12V, ILOAD = 0.5A and the operating ambient temperatures TJ = 25°C.
Parameter
Output Voltage
Symbol
VOUT
η
Conditions
Min Typ Max Units
3.168 3.3 3.342
V
%
V
4.75V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
VIN = 12V, ILOAD = 3A (Note 3)
7V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
VIN = 12V, ILOAD = 3A (Note 3)
AMC2596-3.3
AMC2596-5.0
AMC2596-ADJ
Efficiency
73
Output Voltage
Efficiency
VOUT
η
4.800 5.0 5.200
80
1.193 1.230 1.267
73
%
V
Feedback Voltage
Efficiency
VFB
η
4.5V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
VIN = 12V, ILOAD = 3A (Note 3)
Adjustable Version Only, VFB =1.3V
(Note 4)
%
nA
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Ib
10
50
fOSC
127 150 173 KHz
VSAT IOUT = 3A (Note 5,6)
1.16 1.4
V
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
100
0
(Note 8,9)
DC
%
Current Limit
ILIMIT Peak Current (Note 5,6)
3.6
4.5
6.9
50
A
Output = 0V (Note 5,7)
ILEAK
µA
mA
mA
µA
V
Output Leakage Current
2
Output = -1V (Note 8)
30
(Note 9)
Quiescent Current
Standby Current
IQ
5
10
ISTBY ENABLE pin=5V (OFF) (Note 8)
80
200
0.6
VIH
VIL
IH
Low(Regulator ON)
ENABLE Pin Threshold Voltage
ENABLE Pin Input Current
High(Regulator OFF)
2.0
VLOGIC=2.5V(Regulator OFF)
VLOGIC=0.5V(Regulator OFF)
5
15
5
µA
µA
IL
0.02
Note 1：Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which
the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions,
see the Electrical Characteristics.
Note 2：The human body model is a 100 pF capacitor discharged through a 1.5K resister into each pin.
Note 3：External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect switching
regulator system performance. When the AMC2596 is used as shown in the Figure 1 test circuit, system performance will be as shown in
system parameters section of Electrical Characteristics.
Note 4：The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of
current over-load.
Note 5：No diode, inductor or capacitor connected to output pin.
Note 6：Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
Note 7：Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version, and 15Vfor the 12V version, to force the
output transistor switch OFF.
Note 8：VIN＝40V
Copyright © 2006 ADDtek Corp.
4
DD008_A -- JUNE 2006
ADDTEK [ ADDTEK CORP ]
