LD39015 STMICROELECTRONICS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 16

Technical content

Datasheet sections

  • 1 Diagram
  • 2 Pin configuration
  • 3 Typical application
  • 4 Maximum ratings
  • 5 Electrical characteristics
  • 6 Typical performance characteristics
  • 7 Package mechanical data
  • 8 Packaging mechanical data
  • 9 Revision history

Features

  • Input voltage from 1.5 to 5.5 V
  • Ultra low-dropout voltage (80 mV typ. at 100 mA load)
  • Very low quiescent current (18 µA typ. at no load, 38 µA typ. at 150 mA load, 1 µA max. in OFF mode)
  • Very low noise without bypass capacitor (29 µV RMS at VOUT = 0.8 V)
  • Output voltage tolerance: ± 2.0% @ 25 °C
  • 150 mA guaranteed output current
  • Wide range of output voltages available on request: 0.8 V to 3.3 V with 100 mV step
  • Logic-controlled electronic shutdown
  • Compatible with ceramic capacitors CO = 1 µF
  • Internal current and thermal limit
  • Available in SOT666 and SOT23-5L packages
  • Temperature range: -40 °C to 125 °C

Description

The LD39015 series provides 150 mA maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 80 mV. It is stable with ceramic capacitors. 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 65 dB at low frequencies and starts rolling off at 10 kHz. Enable logic control function puts the LD39015 in shutdown mode allowing a total current consumption lower than 1 µA. The device also includes short-circuit constant current limiting and thermal protection. Typical applications are mobile phones, personal digital assistants (PDAs), cordless phones or similar battery- powered systems. SOT666 SOT23-5L Table 1. Device summary

1 Diagram

Figure 1. Block diagram

2 Pin configuration

Figure 2. Pin connection (top view) Table 2. Pin description

6 NC Not connected

3 Typical application

Figure 3. Typical application circuit

4 Maximum ratings

Note: 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 3. Absolute maximum ratings Table 4. Thermal data

5 Electrical characteristics

Table 5. Electrical characteristics (1)

  1. All transient values are guarantee d by design, not production tested
  2. Dropout voltage is the input-to-output voltage difference at wh ich the output voltage is 100 mV below its nominal value. This
  3. Turn-on time is the time measured between the enable input just exceeding V EN high value and the output voltage just

Table 5. Electrical characteristics (continued)(1)

6 Typical performance characteristics

Figure 4. Output voltage vs. temperature Figure 5. Output voltage vs. input voltage Figure 6. Dropout voltage vs. output current Figure 7. C OUT stability region Figure 8. Supply voltage rejection vs. frequency Figure 9. Output noise voltage vs. frequency

7 Package mechanical data

specifications, grade definitions and product status are available at: www.st.com. Figure 14. SOT23-5L mechanical drawings

Figure 15. SOT23-5L recommended footprint (dimensions in mm) Table 6. SOT23-5L mechanical data

Figure 16. SOT666 mechanical drawings Table 7. SOT666 mechanical data

8 Packaging mechanical data

Table 8. Tape and reel SOT23-5L mechanical data

9 Revision history

Table 9. Document revision history 13-Nov-2007 1 Initial release. 11-Apr-2008 2 Modified: Table 5 on page 7. 12-Feb-2009 3 Modified: Table 1 on page 1. Part number LD39015xx changed to LD39015. Added Section 8: Packaging mechanical data.