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PDF GM66102 Datasheet ( Hoja de datos )

Número de pieza GM66102
Descripción 1A ULTRA LOW-DROPOUT VOLTAGE REGULATORS
Fabricantes Gamma Microelectronics 
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GM66102 Hoja de datos, Descripción, Manual
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Description
GM66102 of positive fixed and adjustable regulators is de-
signed to provide up to 1A output with high current, high ac-
curacy, and extremely low dropout voltage performance.
These regulators feature 300 to 350mV (full load) dropout
voltages and very low ground current. Although designed
for high current, and loads, these devices are also useful in
lower current, extremely low dropout-critical systems,
where their minimal dropout voltage and ground current val-
ues are important characteristics.
GM66102 is fully protected against overcurrent, reversed
input polarity (or reversed battery connection), reversed
lead insertion, over-temperature operation, and transient
voltage spikes (positive or negative). GM66102 is available
in TO-220, SOT-223, TO-252 and TO-263 packages.
Features
Fixed and Adjustable Voltage Versions
Output Current up to 1A
Low Dropout Voltage 350mV @ 1A
Low Ground Current
Accurate 1% Guaranteed Tolerance
Extremely Fast Transient Response
Reverse-battery Protection
"Load Dump" Protection
Extremely Fast Transient Response
Application
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Battery Powered Equipment
Automotive Electronics
TYPICAL APPLICATION CIRCUITS
3.3V ± 5% VIN
CIN
+
22µF
GM66102 - 2.5
GND
VOUT
2.5V ± 1% @1A
+
33µF
CIN is required if regulator is located an appreciable distance from power supply filter.
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GM66102 pdf
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Unless otherwise specified: TJ = 25°C; Bold values are guaranteed across the operating temperature range.
Parameter
Conditions
Output Voltage
(Note2)
Line Regulation
Load Regulation
Output Voltage change with
Temperature Coef. (Note 6)
Dropout Voltage
(For 1.50 Version)
IO = 10 mA
10mA IO IFL , (VOUT + 1V) VIN 26V
IO = 10mA, (VOUT + 1V) VIN 26V
VIN = VOUT + 5V, 10mA IOUT IFL
DVOUT/ DT
DVOUT = -1% (Note 3)
IO = 100mA
IO = 750mA
IO = 1.0A
IO = 100mA
IO = 1.0A
Min
-1
-2
Typ
0.06
0.20
20
80
220
300
Max
1
2
0.5
1.0
100
200
500
0.6
0.8
Unit
%
%
%
%
ppm/°C
mV
V
(For 1.80 Version)
IO = 100mA
IO = 1.0A
0.3
0.5 V
Ground Current
Ground Pin Current at Dropout IGNDDO
Current Limit
Output Noise Voltage en, (10Hz to 100Hz)
IO = 100mA
IO = 750mA, VIN = VOUT + 1V
IO = 1.0A
VIN = 0.5V less than specified VOUT,
IOUT = 10mA, (Note 5)
VOUT,= 0V (Note 4)
CL = 10µF
CL = 33µF
8
22
20
mA
0.9 mA
2.1 3.5
A
400
260
µV (rms)
Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle ( 1%).
The maximum continuous supply voltage is 26V.
Note 2: Full Load current (IFL) is defined as 1.0A for the GM66102 series.
Note 3: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with
VOUT + 1V applied to VIN
Note 4: VIN = VOUT (nominal) + 1V. For example, use VIN = 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing
procedures to minimize temperature rise.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus
the ground pin current.
Note 6: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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