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PDF LX8630-33CP Data sheet ( Hoja de datos )
| Número de pieza | LX8630-33CP | |
| Descripción | 3A BiCMOS Very Low Dropout Regulators | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
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A MICROSEMI COMPANY
LX8630-xx
3A BiCMOS Very Low Dropout Regulators
PRODUCTION DATA SHEET
The LX8630 family are positive very Shut
low dropout regulators. They are device will enter shutdown mode when the
designed to provide a power supply for SHDN pin is pulled low.
very low headroom applications, such as Thermal and Short-Circuit Current
3.3V – 2.5V.
Limiting: the LX8630 limits the current
BiCMOS technology allows an when the output is shorted, protecting the
effective series pass element resistance, sensitive load circuits. The device will
RDS(ON) of 150m
also turn off if the junction temperature
dropout voltage of 450mV at 3A.
exceeds 150°
Low Quiescent Current and Logic- Available in Popular TO-220 and
Controlled Shutdown help conserve TO-263 Power Packages: adjustable
battery life and increase system efficiency. versions have five leads, and fixed output
Typical quiescent current is under 400A voltage devices are supplied in three lead
irrespective of load current, while the
packages.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
LX8630-xx Sim plified Block Diagram
V IN
Reference
Current
Current
Lim it
Charge
Pum p
RA
Dropout Voltage Typically
450mV at 3A and 50mV at
10mA
Low Quiescent Current,
Typically Under 400µA,
irrespective of Load
Shutdown Current 10µA
Adjustable Output Version in
5-Pin TO-220 & TO-263
Packages
Low Reverse Leakage
Current
Short-Circuit and Thermal
Shutdown Protection
3.3V & 2.5V Supplies for
Memory, Microprocessors,
Clock Circuits, Etc.
Portable Equipment
V
OUT
ADJ*
SHDN*
1.25V
+ RB
-
V IN/2
Reverse
Voltage
Sense
T herm al
Shutdown
LX8630-00
LX8630-25
LX8630-33
R
A
-
25K
41K
R
B
-
25K
25K
* Adjustable 5 lead ve rsion only
GND
TA (°C)
Output
Voltage
3.3
0 to 125 2.5
ADJ(00)
Plastic TO-220
Plastic TO-220
Plastic TO-263
Plastic TO-263
P 3-Pin
P 5-Pin
DD 3-Pin
DD 5-Pin
LX8630-33CP
LX8630-25CP
-
-
-
LX8630-00CP
LX8630-33CDD
LX8630-25CDD
-
-
-
LX8630-00CDD
Note: Available in Tape & Reel.
Append the letter “T” to the part number. (i.e. LX8630-33CDDT)
Copyright © 2000
Rev. 1.0a,2000-11-28
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
A MICROSEMI COMPANY
LX8630-xx
3A BiCMOS Very Low Dropout Regulators
PRODUCTION DATA SHEET
Parameter
Symbol
Test Conditions
LX8630-xx
Min Typ Max
Units
LX8630-00 ADJUSTABLE OUTPUT, 3A
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Short Circuit Current
VREF
VREG
IREG
VDO
ISC
TJ = 25°C
Over Temperature
VIN = (VO + 0.6V) to 5.5V @ ADJ Pin (Note 1)
IOUT = 10mA to 3A @ ADJ Pin
IOUT = 3A, OUT = -1%, TJ = 85°C
IOUT = 1.5A, OUT = -1%
IOUT = 10mA, OUT = -1%
VOUT = 0V
1.23 1.25 1.27
1.22 1.25 1.28
24
7 15
0.4 0.6
0.3 0.45
0.05 0.15
5 6.5
V
mV
mV
V
A
Quiescent Current
Quiescent Current in Shutdown
Reverse Leakage Current
Bias Current at ADJ Pin
Shutdown Threshold
SHDN Bias Current
Note 1: VIN min.
IQ
IREV
IBIAS
VSHDN
ISHDN
IOUT = 10mA to 3A
VIN= 4.8V; VSHDN<0.8V
0V < VIN < VOUT, VOUT < 5.5V (at VOUT)
0V < VIN < VOUT, VOUT < 5.5V (at VIN)
VSHDN falling
VSHDN rising
VSHDN < 0.8V
VSHDN = 3V
400 600
1 40
50 650
-50 0
100
0.8 (VIN/2)
(VIN/2)
-2
-1
mA
nA
V
300
250
200
+125
150 +25
-25
100
50
0
0.1 0.5 1.0 1.5 2.0 2.5 3.0
Current Load (Amps)
CHART 1 – Dropout Voltage vs. Output Current (Typical – LX8630-33CCD)
Copyright © 2000
Rev. 1.0a,2000-11-28
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LX8630-33CP.PDF ] | |
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