GM2576
2A STEP DOWN VOLTAGE SWITCHING
REGULATORS
Absolute Maximum Ratings
(Note 1)
Rating
Maximum Supply Voltage
SD Pin Input Voltage / Feed Back Pin Voltage
Output Voltage to Ground (Steady State)
Power Dissipation
Thermal Resistance – Junction to Ambient (θ
JA
)
Storage Temperature Range
Maximum Junction Temperature
Operating Temperature Range
Minimum EDS Rating (Note 2)
Lead Temperature (Soldering, 10 sec)
** 2 square inch of FR-4, double sided, 1oz. minimum copper weight, is
recommended
Value
45
-0.3 + V
IN
+ 0.3
-0.3 + V
IN
+ 0.3
Internally Limited
36
- 65 to 150
+ 150
- 40 to 125
2
+ 260
Unit
V
V
V
-
℃/W
℃
℃
℃
kV
℃
Block Diagram
FB
R2*
V
IN
Regulator
With
Enable
Comparator
R1*
1.23V
Reference
Gnd
52KHz
Oscillator
Reset
Thermal Shutdown
&
Current Limit
V
OUT
Driver
Error
Amplifier
SD
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
GM2576
V1.30
3
GAMMA [ GAMMA MICROELECTRONICS INC. ]
