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PDF G5ELM2576 Data sheet ( Hoja de datos )
| Número de pieza | G5ELM2576 | |
| Descripción | Simple Switcher 3A Step-Down Voltage Regulator | |
| Fabricantes | GTM | |
| Logotipo |  |
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ISSUED DATE :2005/04/15
REVISED DATE :
G5ELM2576
Simple Switcher 3A Step-Down Voltage Regulator
Description
The G5ELM2576 series of regulators are monolithic integrated circuits that provide all active functions for a step-down (buck) switching
regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltage of 3.3v, 5v,
12v, 15v and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and
include internal frequency compensation and a fixed-frequency oscillator.
The G5ELM2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of
the heat sink, and in some cases no heat sink is required.
A standard series if inductors optimized for use with the G5ELM2576 are available from several different manufactures. This feature
greatly simplifies the design of switch-mode power supplies. Other feature include a guaranteed 4% to tolerance on output voltage within
specified input voltages and output load condition, and 10% on the oscillator frequency. External shutdown is included, featuring 50uA
(typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under
fault condition.
Features
3.3V, 5.0V, 12V, 15V and adjustable output versions
Adjustable version output voltage range , 1.23V to 37V
Guaranteed 3A output current
Wide input voltage range
Efficient pre-regulator for linear regulators
Requires only 4 external components
52kHz fixed frequency oscillator
TTL shutdown capability, low power standby mode
High efficiency
Uses readily available standard inductors
Thermal shutdown and current limit protection
Applications
% max over line and load conditions
Simple high-efficiency step-down (buck) regulator
On-card switching regulators
Positive to negative converter (Buck-Boost)
Package Dimensions
Typical Application (Fixed Output Voltage Version)
G5ELM2576-5.0
REF.
A
b
c
D
E
L4
Millimeter
Min. Max.
4.40 4.80
0.76 1.00
0.36 0.50
8.60 9.00
9.80 10.4
14.7 15.3
REF.
L5
c1
L
e
L1
Ø
Millimeter
Min. Max.
6.20 6.60
1.25 1.45
13.25 14.25
1.70 REF.
2.60 2.89
3.71 3.96
G5ELM2576
Page: 1/7
1 page  
ISSUED DATE :2005/04/15
REVISED DATE :
Quiescent Current
Current Limit
Switch Saturation Voltage
Efficiency
Oscillator Frequency
Minimum Operating voltage
G5ELM2576
Page: 5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet G5ELM2576.PDF ] | |
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