GM7130
3A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Absolute Maximum Ratings
(Note 1)
Rating
Maximum Supply Voltage
ON/OFF
Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground (Steady State)
Power Dissipation
Junction to Ambient,
θ
JA
Junction to Case,
θ
JC
TO-220-5
TO-263-5
TO-220-5
TO-263-5
Value
45
-0.3 + V
IN
+ 0.3
-0.3 + V
IN
+ 0.3
-1.0
Internally Limited
65
45
2
2
- 65 to 150
+ 150
- 40 to 125
2
+ 260
°C
°C
°C
kV
°C
2
Unit
V
V
V
V
-
Thermal
Resistance*
°C/W
Storage Temperature Range
Maximum Junction Temperature
Operating Temperature Range
Minimum ESD Rating (Note 2)
Lead Temperature (Soldering, 10 sec)
*
θ
JA
is measured with minimum copper area for TO-220-5 package, and copper area (must connected to ground) of around 0.5 in
for TO-263-5 package.
Block Diagram
FB
5
R2*
V
IN
1
Regulator
With
Enable
Comparator
R1*
1.23V
Reference
Gnd
3
52KHz
Oscillator
Reset
Thermal Shutdown
&
Current Limit
2
V
OUT
Driver
Error
Amplifier
4
ON/OFF
V
OUT
= 3.3V, R1 = 2.49K, R2 = 4.18K
V
OUT
= 5.0V, R1 = 2.49K, R2 = 7.57K
V
OUT
= ADJ, R1 = OPEN, R2 = 0Ω
GM7130
V1.11
5
GAMMA [ GAMMA MICROELECTRONICS INC. ]
