LFXXAB_08 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 49
Technical content
Datasheet sections
- 1 Diagram
- 2 Pin configuration
- 3 Maximum ratings
- 4 Electrical characteristics
- 5 Typical performance characteristi cs
- 6 Package mechanical data
- 7 Order codes
- 8 Revision history
Features
■ Very low dropout voltage (0.45V) ■ Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode) ■ Output current up to 500 mA ■ Logic-controlled electronic shutdown 8; 8.5; 9; 12V ■ Automotive Grade product: 1.8V, 2.5V, 3.3V, 5.0V, 8.0V, 8.5V V OUT in DPAK and PPAK packages ■ Internal current and thermal limit ■ Only 2.2 µF for stability ■ Available in ± 1% (AB) or ± 2% (C) selection at 25°C ■ Supply voltage rejection: 80db (typ.) ■ Temperature range: -40 to 125 °C
Description
The LFxxAB/LFxxC are very Low Drop regulators available in PENTAWATT, TO-220, TO-220FP , DPAK and PPAK package and in a wide range of output voltages. The very low drop voltage (0.45 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems. In the 5 pins configuration (PENTAWATT and PPAK) a Shutdown Logic Control function is available (pin 2, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. In the three terminal configuration the device has the same electrical performance, but is fixed in the ON state. It requires only a 2.2 µF capacitor for stability allowing space and cost saving. The LFxx is available as Automotive Grade in DPAK and PPAK packages, for the options of output voltages whose commercial Part Numbers are shown in the Table 32 (order codes). These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 °C to 125 °C, and the statistical tests PAT, SYL, SBL are performed. TO-220FP PENTAWATT TO-220 DPAKPPAK Table 1. Device summary
1 Diagram
Figure 1. Block diagram
2 Pin configuration
Figure 2. Pin connections (top view)
3 Maximum ratings
Table 2. Absolute maximum ratings
- For 18 < V I < 40 the regulator is in shut-down
Table 3. Thermal data Figure 3. Test circuit
4 Electrical characteristics
Table 4. Electrical characteristics for LF15AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 5. Electrical characteristics for LF15C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 6. Electrical characteristics for LF18AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 7. Electrical characteristics for LF18C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 8. Electrical characteristics for LF18CDT-TRY (Automotive Grade) (refer to the test
Table 9. Electrical characteristics for LF25AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 10. Electrical characteristics for LF25ABDT-TRY (Automotive Grade) (refer to the test
Table 11. Electrical characteristics for LF25C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 12. Electrical characteristics for LF25CDT-TRY (Automotive Grade) (refer to the test
Table 13. Electrical characteristics for LF33AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 14. Electrical characteristics for LF33C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 15. Electrical characteristics for LF33CDT-TRY and LF33CPT-TRY (Automotive Grade)
Table 16. Electrical characteristics for LF50AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 17. Electrical characteristics for LF50ABDT-TRY (Automotive Grade) (refer to the test
Table 18. Electrical characteristics for LF50C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 19. Electrical characteristics for LF50CDT-TRY and LF50CPT-TRY (Automotive Grade)
Table 20. Electrical characteristics for LF60AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 21. Electrical characteristics for LF60C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 22. Electrical characteristics for LF80AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 23. Electrical characteristics for LF80C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 24. Electrical characteristics for LF80CDT-TRY (Automotive Grade) (refer to the test
Table 25. Electrical characteristics for LF85AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 26. Electrical characteristics for LF85C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 27. Electrical characteristics for LF85CDT-TRY and LF85CPT-TRY (Automotive Grade)
Table 28. Electrical characteristics for LF90AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 29. Electrical characteristics for LF90C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 30. Electrical characteristics for LF120AB (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF ,
Table 31. Electrical characteristics for LF120C (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF , CO = 2.2 µF unless otherwise specified).
5 Typical performance characteristics
Figure 4. Dropout voltage vs output current Figure 5. Dropout voltage vs temperature Figure 6. Supply current vs input voltage Figure 7. Supply current vs input voltage Figure 8. Short circuit current vs input Figure 9. Supply current vs temperature
Package mechanical data LFxxAB - LFxxC
6 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
LFxxAB - LFxxC Package mechanical data Dim. mm. inch. A4 . 8 0.189 C1 . 37 0.054 D 2.4 2. 8 0.094 0.110 D1 1.2 1. 35 0.047 0.05 3 E0 . 35 0.55 0.014 0.022 F0 . 8 1.05 0.0 31 0.041 F1 1 1.4 0.0 39 0.055 H2 10.4 0.40 9 H3 10.05 10.4 0. 396 0.40 9 L 17. 85 0.70 3 L1 15.75 0.620 L2 21.4 0. 843 L3 22.5 0. 886 L5 2.6 3 0.102 0.11 8 L6 15.1 15. 8 0.594 0.622 L7 6 6.6 0.2 36 0.260 M 4.5 0.177 M1 4 0.157 Dia1 3.65 3.85 0.144 0.152 PENTAWATT (Vertical) mechanical data P010E
Package mechanical data LFxxAB - LFxxC Dim. mm. inch. A 4.40 4.60 0.17 3 0.181 C1 . 2 3 1.32 0.04 8 0.051 D 2.40 2.72 0.0 94 0.107 D1 1.27 0.050 E0 . 4 9 0.70 0.01 9 0.027 F 0.61 0. 88 0.024 0.0 34 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G4 . 95 5.15 0.1 94 0.20 3 G1 2.4 2.7 0.0 94 0.106 H2 10.0 10.40 0. 393 0.409 L2 16.4 0.645 L4 1 3.0 14.0 0.511 0.551 L5 2.65 2. 95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L93 .5 3.93 0.137 0.154 TO-220 mechanical data P011C
LFxxAB - LFxxC Package mechanical data Dim. mm. inch. A 4.40 4.60 0.17 3 0.181 B 2.5 2.7 0.0 98 0.106 D 2.5 2.75 0.0 98 0.108 E 0.45 0.70 0.017 0.027 F 0.75 1 0.0 300 . 0 39 F1 1.15 1.50 0.045 0.05 9 F2 1.15 1.50 0.045 0.05 9 G4 . 95 5.2 0.1 94 0.204 G1 2.4 2.7 0.0 94 0.106 H 10.0 10.40 0. 393 0.409 L2 16 0.6 30 L3 28.6 30.6 1.126 1.204 L4 9.8 10.6 0. 3850 . 4 1 7 L5 2. 93 .6 0.114 0.142 L6 15. 9 16.4 0.626 0.645 L7 99 .3 0.354 0. 366 DIA. 33 .2 0.11 8 0.126 TO-220FP mechanical data 7012510A-H
Package mechanical data LFxxAB - LFxxC Dim. mm. inch. A 2.2 2.4 0.0 86 0.0 94 A1 0. 9 1.1 0.0 35 0.04 3 A2 0.0 3 0.23 0.001 0.00 9 B 0.64 0. 9 0.025 0.0 35 b4 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.02 3 C2 0.4 8 0.6 0.01 9 0.023 D 6 6.2 0.2 36 0.244 D1 5.1 0.200 E 6.4 6.6 0.252 0.260 E1 4.7 0.1 85 e2 . 2 8 0.090 e1 4.4 4.6 0.17 3 0.181 H 9.35 10.1 0. 368 0.397 L 1 0.0 39 (L1) 2.8 0.110 L2 0. 8 0.031 L4 0.6 1 0.02 3 0.039 R 0.2 0.00 8 V2 0° 8°0 ° 8° DPAK mechanical data 0068772-F
LFxxAB - LFxxC Package mechanical data Dim. mm. inch. A 2.2 2.4 0.0 86 0.0 94 A1 0. 9 1.1 0.0 35 0.04 3 A2 0.0 3 0.23 0.001 0.00 9 B 0.4 0.6 0.015 0.02 3 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.02 3 C2 0.4 8 0.6 0.01 9 0.023 D 6 6.2 0.2 36 0.244 D1 5.1 0.201 E 6.4 6.6 0.252 0.260 E1 4.7 0.1 85 e 1.27 0.050 G4 . 9 5.25 0.1 93 0.206 G1 2. 38 2.7 0.0 93 0.106 H 9.35 10.1 0. 368 0.397 L2 0. 8 1 0.0 31 0.039 L4 0.6 1 0.02 3 0.039 L5 1 0.039 L6 2. 8 0.110 PPAK mechanical data 0078180-E
Package mechanical data LFxxAB - LFxxC Dim. mm. inch. A 330 12. 992 D 20.2 0.7 95 N6 0 2 . 362 T2 2 . 4 0 . 882 Tape & reel DPAK-PPAK mechanical data
7 Order codes
Table 32. Order codes
- Automotive Grade products.
8 Revision history
Table 33. Document revision history 21-Jun-2004 14 Document updating. 24-May-2006 15 Order codes updated. 02-Apr-2007 16 Order codes updated. 14-May-2007 17 Order codes updated. 26-Jul-2007 18 Add Table 1 in cover page. 26-Nov-2007 19 Modified: Table 32. 12-Feb-2008 21 Modified: Table 32 on page 47.