AMC2596 Datasheet, PDF (4/12 Pages) List of Unclassifed Manufacturers – 150 KHz, 3A STEP DOWN VOLTAGE REGULATOR

Temperature Range
Supply Voltage
RECOMMENDED OPERATING CONDITIONS
AMC2596
-40°C≦T_J≦+125°C
4.5V to 40V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply V_IN = 12V, I_LOAD = 0.5A and the operating ambient temperatures T_J = 25°C.
Parameter
Symbol
Conditions
Min Typ Max Units
Output Voltage
Efficiency
Output Voltage
Efficiency
Feedback Voltage
Efficiency
V_OUT
AMC2596-3.3
η
V_OUT
AMC2596-5.0
η
V_FB
AMC2596-ADJ
η
4.75V ≤ V_IN ≤ 40V, 0.2A ≤ I_LOAD ≤ 3A
V_IN = 12V, I_LOAD = 3A (Note 3)
7V ≤ V_IN ≤ 40V, 0.2A ≤ I_LOAD ≤ 3A
V_IN = 12V, I_LOAD = 3A (Note 3)
4.5V ≤ V_IN ≤ 40V, 0.2A ≤ I_LOAD ≤ 3A
V_IN = 12V, I_LOAD = 3A (Note 3)
3.168 3.3 3.342 V
73
%
4.800 5.0 5.200 V
80
%
1.193 1.230 1.267 V
73
%
Feedback Bias Current
Ib Adjustable Version Only, V_FB =1.3V
10 50 nA
Oscillator Frequency
f_OSC (Note 4)
127 150 173 KHz
Saturation Voltage
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
Current Limit
V_SAT I_OUT = 3A (Note 5,6)
DC (Note 8,9)
I_LIMIT Peak Current (Note 5,6)
1.16 1.4 V
100
%
0
3.6 4.5 6.9 A
Output Leakage Current
Output = 0V (Note 5,7)
I_LEAK
Output = -1V (Note 8)
50 µA
2
30 mA
Quiescent Current
I_Q (Note 9)
5 10 mA
Standby Current
I_STBY ENABLE pin=5V (OFF) (Note 8)
80 200 µA
ENABLE Pin Threshold Voltage
V_IH Low(Regulator ON)
V_IL High(Regulator OFF)
0.6 V
2.0
ENABLE Pin Input Current
I_H V_LOGIC=2.5V(Regulator OFF)
I_L V_LOGIC=0.5V(Regulator OFF)
5 15 µA
0.02 5 µA
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：V_IN＝40V
Copyright © 2006 ADDtek Corp.
4
DD008_A -- JUNE 2006