LD39030SJXX12

Manufacturer Part NumberLD39030SJXX12
Description300 mA low quiescent current soft-start, low noise voltage regulator
ManufacturerSTMicroelectronics
LD39030SJXX12 datasheets

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Specifications of LD39030SJXX12

Output Voltage Tolerance± 2.0 % @ 25 °CWide Range Of Output Voltages Available On Request0.8 V to 4.5 V with 100 mV step
Temperature Range-40 °C to 125 °C  
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Features
■
Input voltage from 1.5 to 5.5 V
■
Ultra low dropout voltage (200 mV typ. at 300
mA load)
■
Very low quiescent current (20 µA typ. at no
load, 40 µA typ. at 300 mA load, 1 µA max. in
off mode)
■
Very low noise (33 µV
RMS
kHz at V
= 1.8 V)
OUT
■
Output voltage tolerance: ± 2.0 % @ 25 °C
■
300 mA guaranteed output current
■
Wide range of output voltages available on
request: 0.8 V to 4.5 V with 100 mV step
■
Logic-controlled electronic shutdown
■
Compatible with ceramic capacitor C
■
Internal current and thermal limit
■
Flip-chip 4 bumps 0.8 x 0.8 mm pitch
■
Internal soft-start
■
Turn on time typ. 100 µs
■
Temperature range: -40 °C to 125 °C
Applications
■
Mobile phones
■
Personal digital assistants (PDAs)
■
Cordless phones and similar battery-powered
systems
■
Digital still cameras.
Table 1.
Device summary
Part numbers
LD39030SJXX12
October 2010
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
300 mA low quiescent current
soft-start, low noise voltage regulator
from 1 kHz to 100
Description
The LD39030SJxx is a low noise voltage
regulator that provides 300 mA maximum current
= 1 µF
OUT
from an input voltage in the 1.5 V to 5.5 V range,
with a typical dropout voltage of 200 mV. It is
stabilized with a ceramic capacitor on the output.
The ultra low drop voltage, low quiescent current,
and low noise features make it suitable for low
power battery-powered applications. Power
supply rejection is typically 62 dB at low
frequencies and starts to roll off at 10 kHz. An
enable logic control function puts the
LD39030SJxx in shutdown mode allowing a total
current consumption lower than 1 µA. The device
also includes a short-circuit constant current
limiting and thermal protection.
Order codes
LD39030SJ12R
Doc ID 18103 Rev 1
LD39030SJXX12
Preliminary data
Flip-chip 4
Output voltages
1.2 V
www.st.com
1/18
18

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LD39030SJXX12 Summary of contents

  • Page 1

    ... LD39030SJxx in shutdown mode allowing a total current consumption lower than 1 µA. The device also includes a short-circuit constant current limiting and thermal protection. Order codes LD39030SJ12R Doc ID 18103 Rev 1 LD39030SJXX12 Preliminary data Flip-chip 4 Output voltages 1.2 V www.st.com 1/18 18 ...

  • Page 2

    ... Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Soft-start function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2/18 Doc ID 18103 Rev 1 LD39030SJXX12 ...

  • Page 3

    ... LD39030SJXX12 1 Block diagram Figure 1. Block diagram IN IN BandGap BandGap 1.22 V 1.22 V Trimming Trimming Enable Enable EN EN Thermal Thermal Protection Protection Doc ID 18103 Rev 1 Block diagram OUT OUT GND GND 3/18 ...

  • Page 4

    ... Pin configuration 2 Pin configuration Figure 2. Pin connection (top view) Table 2. Pin description Pin n° Symbol GND OUT 4/18 Enable pin logic input: low = shutdown, high = active Common ground Input voltage of the LDO Output voltage Doc ID 18103 Rev 1 LD39030SJXX12 Function ...

  • Page 5

    ... LD39030SJXX12 3 Typical application Figure 3. Typical application circuit µF 1 µ OUT OUT 1 µF 1 µ GND GND Doc ID 18103 Rev 1 Typical application V V OUT OUT Load Load 5/18 ...

  • Page 6

    ... Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. All values are referred to GND. Table 4. Thermal data Symbol R Thermal resistance junction-ambient thJA 6/18 Parameter Parameter Doc ID 18103 Rev 1 LD39030SJXX12 Value Unit - 0.3 V ...

  • Page 7

    ... LD39030SJXX12 5 Electrical characteristics ° otherwise specified. Table 5. Electrical characteristics for LD39030SJ Symbol Parameter V Operating input voltage IN Turn-on threshold V UVLO Turn-off threshold V V accuracy OUT OUT ΔV Static line regulation OUT Transient line regulation ΔV (2) OUT ΔV Static load regulation ...

  • Page 8

    ... Turn-on time is time measured between the enable input just exceeding V reaching its nominal value. 8/18 Test conditions Capacitance (see Section 7: Typical performance characteristics) high value and the output voltage just EN Doc ID 18103 Rev 1 LD39030SJXX12 (1) Min. Typ. Max. Unit 100 160 µ ...

  • Page 9

    ... LD39030SJXX12 6 Soft-start function The LD39030SJ has an internal soft-start circuit. By increasing the startup time up to 100 µs, without the need of any external soft-start capacitor, this feature is able to reduce the regulator inrush current to 1/3 of the original value. Figure 4. Soft-start function ...

  • Page 10

    ... µF (+10 µF electrolytic µF (+10 µF electrolytic) OUT OUT 3.5 3 4.5 4 5.5 5 Doc ID 18103 Rev 1 LD39030SJXX12 Output voltage vs. input voltage = 1 µ µ OUT OUT OUT OUT V V OUT OUT ...

  • Page 11

    ... LD39030SJXX12 Figure 11. Enable threshold vs. temperature 2 2 OUT OUT 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 0.2 0.1 0 -75 -75 -50 -50 -25 - TEMPERATURE [°C] TEMPERATURE [°C] Figure 13. Supply voltage rejection vs. temperature from 2 2.3 V, Freq kHz from 2 2.3 V, Freq kHz ...

  • Page 12

    ... V V OUT OUT 1 1.2 V OUT OUT V from OUT from 300 Doc ID 18103 Rev 1 LD39030SJXX12 from 1 to 300 mA OUT = 1 µ µs RISE/FALL mA OUT OUT , µs RISE ...

  • Page 13

    ... LD39030SJXX12 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status are available at: www.st.com. ECOPACK registered trademark. Doc ID 18103 Rev 1 Package mechanical data ...

  • Page 14

    ... Package mechanical data Dim. Min. A 0.585 A1 0. 0.265 14/18 Flip-chip 4 mechanical data mm. Typ. Max. 0.65 0.715 23.03 0.25 0.29 0.40 0.315 0.365 10.43 1.07 1.12 40.15 0.5 1.07 1.12 40.15 0.5 0.25 0.25 Doc ID 18103 Rev 1 LD39030SJXX12 mils. Min. Typ. Max. 25.59 28.15 8.27 9.84 11.42 15.75 12.40 14.37 42.13 44.09 19.69 42.13 44.09 19.69 9.84 9.84 7224716/G ...

  • Page 15

    ... LD39030SJXX12 Tape and reel Flip-chip 4 mechanical data Dim. Min 12 1.12 Bo 1.12 Ko 0.68 Po 3.9 P 3.9 mm. Typ. Max. Min. 178 13.2 0.504 0.795 60 61 2.323 8.4 1.17 1.22 0.044 1.17 1.22 0.044 0.73 0.78 0.027 4 4.1 0.153 4 4.1 0.153 Doc ID 18103 Rev 1 Package mechanical data inch. Typ. Max. 6.926 0.519 2.362 2.401 ...

  • Page 16

    ... Package mechanical data Figure 22. Footprint data 16/18 Doc ID 18103 Rev 1 LD39030SJXX12 ...

  • Page 17

    ... LD39030SJXX12 9 Revision history Table 6. Document revision history Date Revision 14-Oct-2010 1 release. Doc ID 18103 Rev 1 Revision history Changes 17/18 ...

  • Page 18

    ... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 18/18 Please Read Carefully: © 2010 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 18103 Rev 1 LD39030SJXX12 ...

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