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PDF LD29150XX Data sheet ( Hoja de datos )
| Número de pieza | LD29150XX | |
| Descripción | very low drop voltage regulators | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LD29150XX
LD29150XXxx
1.5 A, very low drop voltage regulators
Features
■ Very low dropout voltage (typ. 0.4 at 1.5 A)
■ Guaranteed output current up to 1.5 A
■ Fixed and adjustable output voltage (± 1 % at
25 °C)
■ Internal current and thermal limit
■ Logic controlled electronic shutdown available
in PPAK and P²PAK
Description
The LD29150xx is a high current, high accuracy,
low-dropout voltage regulator series. These
regulators feature 400 mV dropout voltage and
very low ground current. Designed for high
current loads, these devices are also used in
lower current, extremely low dropout-critical
systems, where their tiny dropout voltage and
ground current values are important attributes.
Typical applications are in power supply switching
post regulation, series power supply for monitors,
series power supply for VCRs and TVs, computer
systems and battery powered systems.
DPAK
PPAK
P²PAK
Table 1. Device summary
Part numbers
LD29150XX18
LD29150XX25
LD29150XX33
LD29150XX50
LD29150XX
DPAK
LD29150DT18R
LD29150DT25R
LD29150DT33R
LD29150DT50R
Order codes
PPAK
LD29150PT50R
LD29150PTR
P²PAK
LD29150P2T33R
Output voltages
1.8 V
2.5 V
3.3 V
5.0 V
ADJ
October 2010
Doc ID 9614 Rev 16
1/22
www.st.com
22
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1 page  
LD29150XX, LD29150XXxx
3 Typical application
Figure 4. Application circuit
Typical application
* Only for version with inhibit function.
VO = VREF (1 + R1/R2)
www.DataSheet.in
Doc ID 9614 Rev 16
5/22
5 Page 
LD29150XX, LD29150XXxx
Electrical characteristics
IO = 10 mA, TJ = 25 °C, VI = 3.23 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF adjust pin
tied to output pin.
Table 8.
Symbol
Electrical characteristics of LD29150#ADJ
Parameter
Test conditions
Min.
VI
Minimum operating input
voltage
ΔVO Load regulation
ΔVO Line regulation
VREF 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
TSHDN Thermal shutdown
IO = 10 mA to 1.5 A, TJ = - 40 to 125°C
2.5
IO = 10 mA to 1.5 A
VI = 2.5 V to 13 V, IO = 10 mA
IO = 10 mA to 1.5 A, VI = 2.5 to 4.5 V
TJ = - 40 to 125°C (Note 2)
f = 120 Hz, VI = 3.23 ±1 V, IO = 0.75 A
(Note 1)
IO = 0.75 A, TJ = - 40 to 125°C
IO = 1.5 A, TJ = - 40 to 125°C
VI = 13 V, VINH = GND, TJ = - 40 to 125°C
TJ = - 40 to 125°C (Note 1)
VI - VO = 5.5 V
OFF MODE, (Note 3),TJ = - 40 to 125°C
ON MODE, (Note 3), TJ = - 40 to 125°C
TJ = - 40 to 125°C, VINH = 13 V
BP = 10 Hz to 100 kHz, IO = 100 mA
-1%
-2%
45
2
Typ.
0.2
0.06
1.23
75
15
30
130
2.2
5
50
150
Max. Unit
V
1.0
0.5
+1%
+2%
%
%
V
dB
40
mA
80
180 µA
1 µA
A
0.8 V
V
10 µA
µVRMS
°C
Note: 1 Guaranteed by design.
2 Reference voltage is measured between output and GND pin, with ADJ PIN tied to VOUT.
3 Only for version with Inhibit function.
www.DataSheet.in
Doc ID 9614 Rev 16
11/22
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LD29150XX.PDF ] | |
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