|
|
PDF GM7130 Data sheet ( Hoja de datos )
| Número de pieza | GM7130 | |
| Descripción | 3A Step-down Voltage Regulator | |
| Fabricantes | Gamma Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de GM7130 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
PRELIMINARY
GM7130
.com 3A STEP-DOWN VOLTAGE REGULATORS
eet4U3.3V, 5V, 12V, 15V, Adjustable output versions
hAdjustable version output voltage range
taS1.23V to 37V ±4% max over line and load
aconditions
.D3A output current
Input voltage range 7V to 40V
w Requires only 4 external components
ww High efficiency
TTL shutdown capability,
mlow power standby mode
oThermal shutdown, current limit protection
.cUses standard inductors
52 kHz fixed frequency internal oscillator
P+ Product Enhancement tested
et4UApplications:
ePre-regulator for linear regulators
hHigh-efficiency step-down buck regulator
On-card/board switching regulators
SPositive to negative converter (buck-boost)
The GM7130 series of regulators provide all the
active functions for a step-down (buck) switching
regulator, and drive 3A load with excellent line and
load regulation. GM7130’s are available in fixed
output voltages of 3.3V, 5V, 12V, 15V, and a
versatile Adjustable output version. These
regulators are simple to use and require a minimum
number of external components. Features include
internal frequency compensation and a fixed-
frequency oscillator. The GM7130 series are high-
efficiency replacements for popular three-terminal
linear regulators, requiring a smaller heatsink or
even no heatsink. The GM7130’s perform well with
standard inductors from several manufacturers,
simplifying the design of switch-mode power
supplies. The GM7130 series guarantee ±4%
tolerance on output voltage within specified input
voltages and output load conditions, and ±10% on
the oscillator frequency. External shutdown is
included, with 50 µA (typical) standby current. The
output switch has cycle-by-cycle current limiting,
as well as thermal shutdown for full protection
under fault conditions.
.DataConnection Diagrams
wwTO-263 (S)
5-Lead Surface-Mount Package
mTop View
w U.coTAB IS
eet4GND
5 - ON/OFF
4 - Feedback
3 - Ground
2 - Output
1 - VIN
Straight Leads
5-Lead TO-220 (T)
Top View
GND
5 - ON/OFF
4 - Feedback
3 - Ground
2 - Output
1 - VIN
www.DataShRevision 1, May 2002
1 www.gammamicro.com
1 page  
PRELIMINARY
GM7130
3A STEP-DOWN VOLTAGE REGULATORS
ELECTRICAL CHARACTERISTICS NOTES
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.
Guaranteed specifications and test conditions are shown in Electrical Characteristics.
Note 2: All limits guaranteed at 25° C (standard type face) and over full operating temperature range (bold type face).
All 25° C limits are 100% production tested. All limits over full operating temperature range are guaranteed via
correlation using standard Statistical Quality Control methods.
Note 3: External components such as the catch diode, inductor, input and output capacitors can affect switching
regulator system performance. When the GM7130 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
Note 8: Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted
vertically, with ½ inch leads in a socket, or on a PC board with minimum copper area.
Note 9: Junction to ambient thermal resistance (no external heat sink) for the 5 lead TO-220 package mounted
vertically, with ¼ inch leads soldered to a PC board containing approximately 4 square inches of copper area
surrounding the leads.
Note 10: If the TO-263 package is used, the thermal resistance can be reduced by increasing the PC board copper
oafrecaopthpeerrmaarellya,c2onJAneisct3e7d°tCo/Wth,eapnadckwaigthe.1U.6soinrgm0o.5ressqquuaarereininchcheessofocf ocpoppeprear raerae,a2, 2JAJiAsi5s03°2C°/CW/W, w. ith 1 square inch
Note 11: 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-
protection feature lowers the average power dissipation of the GM7130 by lowering the minimum duty cycle from 5%
down to approximately 2%.
Revision 1, May 2002
5 www.gammamicro.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet GM7130.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| GM7130 | 3A Step-down Voltage Regulator | Gamma Microelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |