gm7130hv Gamma Microelectronics, gm7130hv Datasheet - Page 6

• Manufacturer Part Number: gm7130hv
• Description: 3a Step Down Voltage Switching Regulators
• Manufacturer: Gamma Microelectronics

6
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: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold
type face).
Note 3: External components such as the catch diode, inductor, input and output capacitors can affect
switching regulator system performance. When the GM7130HV is used as shown in the Figure 2 test
circuit, system performance will be as shown in system parameters section of Electrical characteristics.
Note 4: Output pin sourcing current. No diode, inductor or capacitor connected to output.
Note 5: Feedback pin removed from output and connected to 0V.
Note 6: Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V,
versions, and +25V for the 12V and 15V versions, to force the output transistor OFF.
Note 7: VIN =40V (60V for high voltage version).
Note 8: The oscillator frequency reduces to approximately 11 kHz in the event of an output short or an
overload which causes the regulated output voltage to drop approximately 40% from the nominal output
voltage. This self protections feature lowers the average power dissipation of the IC by lowering the
minimum duty cycle from 5% down to approximately
Electrical Characteristics: All Output Voltage Versions
(Specifications with standard type face are for T
rage. Unless otherwise specified, V
Parameter
Feedback Bias
Current
Oscillator
Frequency
Saturation
Voltage
Max Duty Cycle
(ON)
Current Limit
Output Leakage
Current
Quiescent
Current
Standby
Quiescent
Current
ON/OFF
Logic lnput Level
ON/OFF Pin
Input Current
Pin
Condition
V
(Note 8)
l
(Note 5)
Peak Current (Notes 4, 8)
Output =0V (Notes 6, 7)
Output = -1V (Notes 6, 7)
(Note 6)
ON/OFF
Low (ON)
High (OFF)
V
V
OUT
OUT
LOGlC
LOGlC
Preliminary
Information
= 3A (Notes 4)
=5V (Adjustable Version Only)
= 2.5V (OFF)
= 0.5V (ON)
= 5V (OFF)
IN
= 12V for 3.3V, 5.0V and Adj version, V
J
= 25°C, and those with bold face type apply over full Operating Temperature
3A STEP DOWN VOLTAGE SWITCHING
Symbol
V
l
STBY
DC
V
V
l
I
f
SAT
l
I
I
CL
l
Q
b
o
L
H
L
IH
IL
IN
= 25V for 12V version, I
Min
4.2
3.5
2.2
2.4
47
42
93
-
-
-
-
-
-
GM7130HV
Typ
1.4
5.8
7.5
1.2
1.4
50
52
98
50
12
5
0
LOAD
= 500mA)
REGULATORS
Max
100
500
200
1.8
2.0
6.9
7.5
1.0
0.8
58
63
30
10
30
10
2
-
-
Unit
kHz
mA
mA
nA
µA
µA
%
V
A
V