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Description
The GM7800 series are classic regulators, which are useful in a wide range of applications. For example, you can use them for local on-card regulation to eliminate the distribution and problems associated with single point regulation. The wide range of output voltages (5V to 27V) make them useful in an endless list of applications. Although designed as fixed voltage regulators, you can add a few external components to make adjustable voltages and currents. Current limiting prevents the peak output current to a safe value. Safe-area protection of the output transistor limits internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit activates to prevent the regulator from overheating. These versatile workhorses are easy to use. You do not need to bypass the output, although this does improve transient response. Input bypass is needed only if you place the regulator far from the filter capacitor of the power supply. The GM7800 series is available in TO-220, TO-252 and TO-263 packages.
Features
Output current up to 1.5A Output Voltages 5V, 6V, 8V, 8.5V, 9V, 10V, 12V, 15V, 18V, 20V, 24V and 27V 3- Terminal Regulators Internal Thermal Overload Protection Internal Short-Circuit Current Limiting Output Transistor Safe-Area Protection TO-220, TO-252 and TO-263 Packages High Power Dissipation Capability Direct replacements for LM78xx
Application
Post-Regulator Switching DC/DC Converters Bias Supply for Analog Circuits Instrumentation and Audio Systems Logic Systems Others too numerous to mention
TYPIC APPLICATION CIRCUITS
VIN
GM7800
VOUT 1.5A
0.33µF
0.1µF
GND
For a positive regulator, a 0.33µF bypass capacitor should be used on the input terminals. While not necessary for stability, an output capacitor of 0.1µF may be used to improve the transient response of the regulator. These capacitors should be on or as near as possible to the regulator terminals . www.gammamicro.com
GM7800 SERIES V0.1
1
MARKING INFORMATION & PIN CONFIGURATIONS (TOP VIEW)
TO-263-2 (D PAK)
2
TO-220
TO-252-3 (DPAK)
GM78VV
AYWW
GM78VV
AYWW
GM78VV
AYWW
VV A Y WW
=Output Voltage(05: 5.0V, 12: 12V) =Assembly Location =Year =Weekly
INPUT GND
OUTPUT INPUT GND OUTPUT VIN
VOUT
TAB is GND
ORDERING INFORMATION
Pro Number
GM7805 GM7806 GM7808 GM7885 GM7809 GM7810 GM7812 GM7815 GM7818 GM7820 GM7824 GM7827
VOUT
5.0V 6.0V 8.0V 8.5V 9.0V 10V 12V 15V 18V 20V 24V 27V
Package
TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252 TO-263, TO-220, TO-252
* For detail Ordering Number identification, please see last page.
GM7800 SERIES
RECOMMENDED OPERATING CONDITIONS (IO= 1.5A)
PARAMETER
GM7805 GM7806 GM7808 GM7885 GM7809 GM7810 GM7812 GM7815 GM7818 GM7820 GM7824 GM7827
MIN
7 8 10.5 10.5 11.5 12.5 14.5 17.5 21 23 27 30 0
MAX
25 25 25 25 27 28 30 30 33 36 38 40 1.5 125
UNIT
Input Voltage VI
V
2
Output Current, IO Operating virtual junction temperature, TJ
A °C
ABSOLUTE MAXIMUM RATINGS
PARAMETER
GM7824, GM7827
VALUE
40
UNIT
V
Input Voltage
All others
35 2 W 15 0 to +150 -65 to +150 260 °C
Continuous Total Dissipation at 25°C free-air temperature Continuous Total Dissipation at (or bellow) 25°C case Temperature Operating free-air, case, or virtual junctions Temperature Range Storage Temperature Range Lead Temperature 1.6mm (1/16 inch) from case for 10seconds
SCHEMATIC BLOCK DIAGRAM
INPUT
Q11 R13 10k D2 D1 6.3V R12 200 Q13 Q14
Q15
Q12
Q16 R10 1k R15 2k
R14 230
R16 0.3k OUTPUT R17
R1 30k
Q1
Q6 VREF R9 4k R2 1.9k R7 17k C1 20pF Q10 Q7 Q8 Q3 Q5 R8 4k R18 2.6k
Q2 R3 26 Q4
R4 1.2k
R5 12.1k
R6 1k
Q9
GND
GM7800 SERIES
3
ELECTRICAL CHARACTERISTICS at specified Junction Temperature
GM7805: VI= 10V, IO= 500mA, (unless otherwise noted)
CHARACTERISTICS
Output Voltage **
TEST CONDITIONS *
25°C IO= 5mA to 1A VI=7V to 20V, P VI=7V to 25V VI=8V to 12V VI=8V to 18V, f = 120Hz IO=5mA to 1.5A IO=250mA to 750mA f = 1kHz IO= 5mA f = 10Hz to 100kHz IO= 1A VI= 7V to 25V IO=5mA to 1A 15W 0°C to 125°C 25°C 0°C to 125°C 25°C 0°C to 125°C 0°C to 125°C 25°C 25°C 25°C 0°C to 125°C 25°C 25°C
MIN
4.8 4.75
TYP
5.0 5.0 3 1
MAX
5.2 5.25 100 50 100 50
UNIT
V
Input Regulation Ripple Rejection Output Regulation Output Resistance Temperature Coefficient Output Voltage Output Noise Voltage Dropout Voltage Bias Current Bias Current Change Short-Circuit Output Current Peak Output Current
mV dB mV W mV/°C µV V
62
78 15 5 0.017 -1.1 40 2.0 4.2 8 1.3 0.5 750 2.2
mA mA mA A
GM7806: VI= 11V, IO= 500mA, (unless otherwise noted)
CHARACTERISTICS
Output Voltage **
TEST CONDITIONS *
25°C IO= 5mA to 1A VI=8V to 21V, P VI=8V to 25V VI=9V to 13V VI=9V to 19V, f = 120Hz IO=5mA to 1.5A IO=250mA to 750mA f = 1kHz IO= 5mA f = 10Hz to 100kHz IO= 1A VI= 8V.