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PDF LD39030 Data sheet ( Hoja de datos )
| Número de pieza | LD39030 | |
| Descripción | 300mA very low quiescent current linear regulator IC | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LD39030
300 mA very low quiescent current linear regulator IC
Datasheet - production data
Features
Input voltage from 1.5 to 5.5 V
Ultra low dropout voltage (300 mV typ. at
300 mA load)
Very low quiescent current (20 µA typ at no
load, 0.03 µA typ in off mode)
Output voltage tolerance: ±0.5 % (A version)
or ± 2.0 % @ 25 °C (standard version)
300 mA guaranteed output current
High PSRR (80 dB@1 kHz, 50 db@100
kHz)
Wide range of output voltages available on
request: from 0.8 V up to 5.0 V in 50 mV
step
Logic-controlled electronic shutdown
Internal soft-start
Optional output voltage discharge feature
Compatible with ceramic capacitor
COUT = 0.47 µF
Internal constant current and thermal
protections
Available in DFN4 1x1
Operating temperature range: -40 °C to
125 °C
Applications
Mobile phones
Tablets
Digital still cameras (DSC)
Cordless phones and similar battery-
powered systems
Portable media players
Description
The LD39030 high accuracy voltage regulator
provides 300 mA of maximum current from an
input voltage ranging from 1.5 V to 5.5 V, with a
typical dropout voltage of 300 mV.
It is available in DFN4 1x1 package, allowing the
maximum space saving.
The device is stabilized with a ceramic capacitor
on the output. The ultra low drop voltage, low
quiescent current and low noise features,
together with the internal soft-start circuit, make
the LD39030 suitable for low power battery-
operated applications.
An enable logic control function puts the
LD39030 in shutdown mode allowing a total
current consumption lower than 0.1 µA. Constant
current and thermal protection are provided.
November 2015
DocID028649 Rev 1
This is information on a product in full production.
1/21
www.st.com
1 page  
LD39030
3 Typical application
Figure 3: Typical application circuits
Typical application
DocID028649 Rev 1
5/21
5 Page 
LD39030
Figure 8: Quiescent current vs. temperature
(IOUT = 0 mA)
Typical characteristics
Figure 9: Quiescent current vs. temperature
(IOUT = 200 mA)
Figure 10: Shutdown current vs. temperature
Figure 11: Quiescent current vs. load current
Figure 12: Quiescent current vs. input voltage
Figure 13: Dropout voltage vs temperature
DocID028649 Rev 1
11/21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet LD39030.PDF ] | |
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