LD39015XX STMICROELECTRONICS | Alldatasheet
Document overview
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- 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 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, 35 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 LD39015xx series provides 150 mA maximum current from an input voltage ranging from 1.5 V to 5.5 V with a typical dropout voltage of 80 mV. It is stable with ceramic capacitor. 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 to roll off at 10 kHz. Enable logic control function puts the LD39015xx in shut-down 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)
- All transient values are guarant eed by design, not production tested
- Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This
- Turn-on time is the time measured be tween the enable input just exceeding VEN 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. Figure 9. Output noise voltage vs. frequency
LD39015xx Package mechanical data
7 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 is an ST trademark.
Dim. mm. mil s. A0 . 90 1.45 35.4 57.1 A1 0.00 0.10 0.0 3.9 A2 0. 901 . 30 35.4 51.2 b 0.35 0.50 1 3.7 1 9.7 C0 . 0 9 0.20 3.5 7. 8 D2 . 80 3.00 110.2 11 8.1 E 1.50 1.75 5 9.0 6 8.8 e0 . 95 37.4 H 2.60 3.00 102. 3 118.1 L 0.10 0.60 3.9 23.6 SOT23-5L mechanical data 7049676D
LD39015xx Package mechanical data Dim. mm. inch. L3 0.05 0.10 0.002 0.004 b 0.17 0.25 0.17 0.25 b1 0.27 0. 34 0.27 0. 34 e0 . 5 0 0 . 5 e1 0.20 0.2 SOT666 mechanical data 7673701C
Dim. mm. inch. A1 80 7.0 86 D 20.2 0.7 95 N6 0 2 . 362 T 14.4 0.567 Tape & reel SOT23-xL mechanical data
8 Revision history
Table 6. 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.