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PDF LD29080 Data sheet ( Hoja de datos )
| Número de pieza | LD29080 | |
| Descripción | 800mA FIXED AND ADJUSTABLE OUTPUT VERY LOW DROP VOLTAGE REGULATOR | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LD29080 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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LD29080
SERIES
www.DataSheet4U.com
800mA FIXED AND ADJUSTABLE OUTPUT
VERY LOW DROP VOLTAGE REGULATOR
s VERY LOW DROPOUT VOLTAGE
(TYP. 0.4V AT 800mA)
s GUARANTEED OUTPUT CURRENT UP TO
800mA
s FIXED AND ADJUSTABLE OUTPUT
VOLTAGE (±1% AT 25°C)
s INTERNAL CURRENT AND THERMAL LIMIT
s LOGIC CONTROLLED ELECTRONIC
SHUTDOWN
PRELIMINARY DATA
PPAK
DPAK
DESCRIPTION
The LD29080 is a high current, high accuracy,
low-dropout voltage regulators series. These
regulators feature 400mV dropout voltages and
very low ground current. Designed for high current
loads, these devices also find applications in lower
current, extremely low dropout-critical systems,
where their tiny dropout voltage and ground
current values are important attributes. Typical
application are in Power supply switching post
SOT-223
regulation, Series power supply for monitors,
Series power supply for VCRs and TVs, Computer
Systems and Battery powered systems.
Figure 1: Schematic Diagram For Adjustable Version
October 2004
Rev. 1
1/21
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1 page  
LD29080 SERIES
Table 6: Electrical Characteristics Of LD29080#18
(IO = 10mA (Note 4), TJ = 25°C, VI = 3.5V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified)
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VI Operating Input Voltage
VO Output Voltage
∆VO
∆VO
SVR
Load Regulation
Line Regulation
Supply Voltage Rejection
VDROP Dropout Voltage
Iq Quiescent Current
Isc Short Circuit Current
VIL Control Input Logic Low
VIH Control Input Logic High
IINH Control Input Current
eN Output Noise Voltage
Test Conditions
Min.
IO = 10mA to 800mA
IO = 10mA to 800mA, VI = 3 to 7.3V
TJ = -40 to 125°C
IO = 10mA to 800mA
VI = 3 to 13V
f = 120 Hz, VI = 3.8 ± 1V, IO = 400mA
(Note 1)
IO = 150mA,TJ = -40 to 125°C (Note 2)
IO = 400mA,TJ = -40 to 125°C (Note 2)
IO = 800mA,TJ = -40 to 125°C (Note 2)
IO = 10mA,
TJ = -40 to 125°C
IO = 400mA,
TJ = -40 to 125°C
IO = 800mA,
TJ = -40 to 125°C
VI = 13V, VINH = GND TJ = -40 to 125°C
RL = 0
OFF MODE
TJ = -40 to 125°C
ON MODE
TJ = -40 to 125°C
VINH = 13V
TJ = -40 to 125°C
BP = 10Hz to 100KHzIO = 100mA
2.5
1.782
1.755
62
2
Typ.
1.8
0.2
0.06
72
0.1
0.2
0.4
2
8
14
130
1.2
5
72
Max.
13
1.818
1.845
1.0
0.5
Unit
V
V
%
%
dB
V
0.7
5 mA
20
35
180 µA
A
0.8 V
V
10 µA
µVRMS
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
5/21
5 Page 
LD29080 SERIES
Table 12: Electrical Characteristics Of LD29080#ADJ
(IO = 10mA (Note 4), TJ = 25°C, VI = 3.23 V, VINH = 2V, CI = 330nF, CO = 10µF adjust pin tied to output
pin, unless otherwise specified)
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Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VI
∆VO
∆VO
VREF
Minimum Operating Input
Voltage
Load Regulation
Line Regulation
Reference Voltage
SVR Supply Voltage Rejection
Iq Quiescent Current
IADJ Adjust Pin Current
Isc Short Circuit Current
VIL Control Input Logic Low
VIH Control Input Logic High
IINH Control Input Current
eN Output Noise Voltage
IO = 10mA to 800mA
IO = 10mA to 800mA
VI = 2.5 V to 13V
IO = 10mA
IO = 10mA to 800mA, VI = 2.5 to 6.73V
TJ = -40 to 125°C (Note 3)
f = 120 Hz, VI = 3.23 ± 1V, IO = 400mA
(Note 1)
IO = 10mA,
TJ = -40 to 125°C
IO = 400mA,
TJ = -40 to 125°C
IO = 800mA,
TJ = -40 to 125°C
VI = 13V, VINH = GND TJ = -40 to 125°C
TJ = -40 to 125°C (Note 1)
RL = 0
OFF MODE
TJ = -40 to 125°C
ON MODE
TJ = -40 to 125°C
VINH = 13V
TJ = -40 to 125°C
BP = 10Hz to 100KHzIO = 100mA
2.5 13 V
1.2177
1.1993
45
0.2
0.06
1.23
75
1.0
0.5
1.2423
1.2607
%
%
V
dB
2 5 mA
8 20
14 35
130 180 µA
1 µA
1.2 A
0.8 V
2V
5 10 µA
50 µVRMS
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
TYPICAL CHARACTERISTICS
Figure 5: Output Voltage vs Temperature
Figure 6: Reference Voltage vs Temperature
11/21
11 Page | ||
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| PDF Descargar | [ Datasheet LD29080.PDF ] | |
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