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

AMC2596
Temperature Range
Supply Voltage
RECOMMENDED OPERATING CONDITIONS
-40°C≦T_J≦+125°C
4.5V to 40V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply VIN = 12V, ILOAD = 0.5A and the operating ambient temperatures TJ = 25°C.
Parameter
Symbol
Conditions
Min Typ Max Units
Output Voltage
Efficiency
AMC2596-3.3
Output Voltage
Efficiency
AMC2596-5.0
Feedback Voltage
AMC2596-ADJ
Efficiency
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
Current Limit
Output Leakage Current
V_OUT
η
V_OUT
η
V_FB
η
Ib
f_OSC
V_SAT
DC
I_LIMIT
I_LEAK
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)
Adjustable Version Only, V_FB =1.3V
(Note 4)
I_OUT = 3A (Note 5,6)
(Note 8,9)
Peak Current (Note 5,6)
Output = 0V (Note 5,7)
Output = -1V (Note 8)
3.168 3.3 3.342 V
73
%
4.800 5.0 5.200 V
80
%
1.193 1.230 1.267 V
73
%
10 50 nA
127 150 173 KHz
1.16 1.4 V
100
%
0
3.6 4.5 6.9 A
50 µA
2
30 mA
Quiescent Current
Standby Current
ENABLE Pin Threshold Voltage
ENABLE Pin Input Current
I_Q
I_STBY
V_IH
V_IL
I_H
I_L
(Note 9)
ENABLE pin=5V (OFF) (Note 8)
Low(Regulator ON)
High(Regulator OFF)
V_LOGIC=2.5V(Regulator OFF)
V_LOGIC=0.5V(Regulator OFF)
5 10 mA
80 200 µA
0.6 V
2.0
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：VIN＝40V
Copyright © 2005 ADD Microtech Corp.
4
AMC2596_A (LF) May 2005