|
|
PDF LD2985BM28R Data sheet ( Hoja de datos )
| Número de pieza | LD2985BM28R | |
| Descripción | Very low drop and low noise voltage regulator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LD2985BM28R (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
LD2985
Very low drop and low noise voltage regulator with inhibit function
SOT23-5L
Features
• Very low dropout voltage (280 mV at 150 mA
and 7 mV at 1 mA load)
• Very low quiescent current (2 mA typ. at 150
mA load and 80 µA at no load)
• Output current up to 150 mA
• Logic controlled electronic shutdown
• Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
• Internal current and thermal limit
• Low output noise voltage 30 mVrms
• Small package SOT23-5L
• Temperature range: - 40°C to 125 °C
Description
The LD2985 is a 150 mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, and in
battery powered systems. In sleep mode
quiescent current is less than 1 µA when INHIBIT
pin is pulled low. Shutdown logic control function
is available on pin 3 (TTL compatible). This
means that when the device is used as local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
An external capacitor, CBYP = 10 nF, connected
between bypass pin and GND reduces the noise
Datasheet - production data
to 30 µVrms. Typical application are in cellular
phone, palmtop laptop computer, personal digital
assistant (PDA), personal stereo, camcorder and
camera.
Table 1. Device summary
Order codes
Output voltages
LD2985BM18R
1.8 V
LD2985BM25R
LD2985BM28R
2.5 V
2.8 V
LD2985BM30R
3.0 V
LD2985BM31R
3.1 V
LD2985BM33R
3.3 V
LD2985BM50R
5.0 V
November 2013
This is information on a product in full production.
DocID8189 Rev 13
1/18
www.st.com
18
1 page  
LD2985
3 Maximum ratings
Maximum ratings
Note:
Symbol
VI
VINH
IO
PD
TSTG
TOP
Table 4. Absolute maximum ratings
Parameter
Value
DC input voltage
16
INHIBIT input voltage
16
Output current
Internally limited
Power dissipation
Storage temperature range
Internally limited
-65 to 150
Operating junction temperature range
-40 to 125
Unit
V
V
°C
°C
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
DocID8189 Rev 13
5/18
5 Page 
LD2985
Figure 13. Line transient (tr = tf = 500 ns)
Typical characteristics
Figure 14. Line transient (tr = tf = 1 µs)
VO = 2.5 V, IO = 50 mA, no CI, CO = 4.7 µF, tr = tf = 500 ns
VO = 2.5V, IO = 50 mA, no CI, CO = 4.7 µF, tr = tf = 1 µs
Figure 15. Load transient (CO = 10 µF)
Figure 16. Load transient (CO = 4.7 µF)
VO = 2.5 V, IO = 0 to 50mA, no CI, CO = 10 µF, tr = tf = 500 ns
VO = 2.5 V, IO = 0 to 50 mA, no CI, CO = 4.7 µF, tr = tf = 500 ns
DocID8189 Rev 13
11/18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet LD2985BM28R.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LD2985BM28R | Very low drop and low noise voltage regulator | STMicroelectronics |
| 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 |