IC REG VLDO 500MA 3.3V TO-220

LF33CV

Manufacturer Part NumberLF33CV
DescriptionIC REG VLDO 500MA 3.3V TO-220
ManufacturerSTMicroelectronics
LF33CV datasheet
 

Specifications of LF33CV

Regulator TopologyPositive FixedVoltage - Output3.3V
Voltage - InputUp to 16VVoltage - Dropout (typical)0.4V @ 500mA
Number Of Regulators1Current - Output500mA
Operating Temperature-40°C ~ 125°CMounting TypeThrough Hole
Package / CaseTO-220-3 (Straight Leads)Number Of Outputs1
PolarityPositiveInput Voltage Max16 V
Output Voltage3.3 VOutput TypeFixed
Dropout Voltage (max)1 VOutput Current1 A
Line Regulation16 mVLoad Regulation16 mV
Voltage Regulation Accuracy2 %Maximum Operating Temperature+ 125 C
Mounting StyleThrough HoleMinimum Operating Temperature- 40 C
Primary Input Voltage40VOutput Voltage Fixed3.3V
Dropout Voltage Vdo450mVNo. Of Pins3
Operating Temperature Range-40°C To +85°CFilter TerminalsThrough Hole
Rohs CompliantYesLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Limit (min)-Other names497-7313-5
LF33CV
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Features
Very low dropout voltage (0.45 V)
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
Output voltages of 1.5; 1.8; 2.5; 3.3; 4.7; 5; 6;
8; 8.5; 9; 12 V
Automotive Grade product: 1.8 V, 2.5 V, 3.3 V,
5.0 V, 8.0 V, 8.5 V V
in DPAK and PPAK
OUT
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: 80 db (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,
Table 1.
Device summary
LF15AB
LF25C
LF18C
LF25AB
LF18AB
LF33C
November 2010
Very low drop voltage regulators with inhibit
PPAK
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
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.
Part numbers
LF33AB
LF60C
LF50C
LF60AB
LF50AB
LF80C
Doc ID 2574 Rev 24
LFxxAB
LFxxC
TO-220FP
TO-220
DPAK
PENTAWATT
LF80AB
LF90C
LF120AB
LF85C
LF90AB
LF85AB
LF120C
1/50
www.st.com
50

LF33CV Summary of contents

  • Page 1

    Features ■ Very low dropout voltage (0.45 V) ■ Very low quiescent current (typ. 50 µA in OFF mode, 500 µ mode) ■ Output current up to 500 mA ■ Logic-controlled electronic shutdown ■ Output voltages of 1.5; ...

  • Page 2

    Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 3

    LFxxAB, LFxxC List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 4

    List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 5

    LFxxAB, LFxxC 1 Diagram Figure 1. Block diagram Doc ID 2574 Rev 24 Diagram 5/50 ...

  • Page 6

    Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) TO-220 PPAK 6/50 PENTAWATT Doc ID 2574 Rev 24 LFxxAB, LFxxC TO-220FP DPAK ...

  • Page 7

    LFxxAB, LFxxC 3 Maximum ratings Table 2. Absolute maximum ratings Symbol V DC input voltage I I Output current O P Power dissipation TOT T Storage temperature range STG T Operating junction temperature range OP 1. For 18 < V ...

  • Page 8

    Electrical characteristics 4 Electrical characteristics Refer to the test circuits, T Table 4. Electrical characteristics for LF15AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 9

    LFxxAB, LFxxC Refer to the test circuits, T Table 5. Electrical characteristics for LF18AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 10

    Electrical characteristics Refer to the test circuits, T Table 6. Electrical characteristics for LF18C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 11

    LFxxAB, LFxxC Refer to the test circuits, T specified. Table 7. Electrical characteristics for LF18CDT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 12

    Electrical characteristics Refer to the test circuits, T Table 8. Electrical characteristics for LF25AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 13

    LFxxAB, LFxxC Refer to the test circuits, T specified. Table 9. Electrical characteristics for LF25ABDT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 14

    Electrical characteristics Refer to the test circuits, T Table 10. Electrical characteristics for LF25C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 15

    LFxxAB, LFxxC Refer to the test circuits, T specified. Table 11. Electrical characteristics for LF25CDT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 16

    Electrical characteristics Refer to the test circuits, T Table 12. Electrical characteristics for LF33AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 17

    LFxxAB, LFxxC Refer to the test circuits, T Table 13. Electrical characteristics for LF33C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 18

    Electrical characteristics Refer to the test circuits, T specified. Table 14. Electrical characteristics for LF33CDT-TRY and LF33CPT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV ...

  • Page 19

    LFxxAB, LFxxC Refer to the test circuits, T Table 15. Electrical characteristics for LF50AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 20

    Electrical characteristics Refer to the test circuits, T specified. Table 16. Electrical characteristics for LF50ABDT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 21

    LFxxAB, LFxxC Refer to the test circuits, T Table 17. Electrical characteristics for LF50C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 22

    Electrical characteristics Refer to the test circuits, T specified. Table 18. Electrical characteristics for LF50CDT-TRY and LF50CPT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV ...

  • Page 23

    LFxxAB, LFxxC Refer to the test circuits, T Table 19. Electrical characteristics for LF60AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 24

    Electrical characteristics Refer to the test circuits, T Table 20. Electrical characteristics for LF60C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 25

    LFxxAB, LFxxC Refer to the test circuits, T Table 21. Electrical characteristics for LF80AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 26

    Electrical characteristics Refer to the test circuits, T Table 22. Electrical characteristics for LF80C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 27

    LFxxAB, LFxxC Refer to the test circuits, T specified. Table 23. Electrical characteristics for LF80CDT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation ...

  • Page 28

    Electrical characteristics Refer to the test circuits, T Table 24. Electrical characteristics for LF85AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 29

    LFxxAB, LFxxC Refer to the test circuits, T Table 25. Electrical characteristics for LF85C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 30

    Electrical characteristics Refer to the test circuits, T specified. Table 26. Electrical characteristics for LF85CDT-TRY and LF85CPT-TRY (Automotive Grade) Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV ...

  • Page 31

    LFxxAB, LFxxC Refer to the test circuits, T Table 27. Electrical characteristics for LF90AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 32

    Electrical characteristics Refer to the test circuits, T Table 28. Electrical characteristics for LF90C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 33

    LFxxAB, LFxxC Refer to the test circuits, T Table 29. Electrical characteristics for LF120AB Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 34

    Electrical characteristics Refer to the test circuits, T Table 30. Electrical characteristics for LF120C Symbol Parameter V Output voltage O V Operating input voltage I I Output current limit O ΔV Line regulation O ΔV Load regulation O I Quiescent ...

  • Page 35

    LFxxAB, LFxxC 5 Typical performance characteristics Unless otherwise specified V Figure 4. Dropout voltage vs. output current Figure 5. Figure 6. Supply current vs. input voltage Figure 8. Short circuit current vs. input voltage Typical performance characteristics = 3.3 V. ...

  • Page 36

    Typical performance characteristics Figure 10. Logic controlled precision 3.3 / 5.0 V selectable output Figure 11. Sequential multi-output supply 36/50 Doc ID 2574 Rev 24 LFxxAB, LFxxC ...

  • Page 37

    LFxxAB, LFxxC Figure 12. Multiple supply with ON / OFF toggle switch Figure 13. Basic inhibit functions Typical performance characteristics Doc ID 2574 Rev 24 37/50 ...

  • Page 38

    Typical performance characteristics Figure 14. Delayed turn-on Figure 15. Low voltage bulb blinker 38/50 Doc ID 2574 Rev 24 LFxxAB, LFxxC ...

  • Page 39

    LFxxAB, LFxxC 6 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: ...

  • Page 40

    Package mechanical data Figure 16. Drawing dimension TO-220 (type STD-ST Dual Gauge) Note: 1 Maximum resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. 40/50 ...

  • Page 41

    LFxxAB, LFxxC Figure 17. Drawing dimension TO-220 (type STD-ST Single Gauge) Doc ID 2574 Rev 24 Package mechanical data 8174627_B 41/50 ...

  • Page 42

    Package mechanical data Figure 18. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 19. Drawing dimension tube for TO-220 Single Gauge (mm.) 42/50 Doc ID 2574 Rev 24 LFxxAB, LFxxC ...

  • Page 43

    LFxxAB, LFxxC PENTAWATT (Vertical) mechanical data Dim. Min 2.4 D1 1.2 E 0. 3 10. 2 Dia1 ...

  • Page 44

    Package mechanical data Dim. Min. A 4.40 B 2.5 D 2.5 E 0.45 F 0.75 F1 1.15 F2 1.15 G 4.95 G1 2 28.6 L4 9.8 L5 2 DIA. 3 44/50 TO-220FP ...

  • Page 45

    LFxxAB, LFxxC Dim. Min. A 2.2 A1 0.9 A2 0.03 B 0.64 b4 5.2 C 0. 4 (L1 0 0° DPAK mechanical ...

  • Page 46

    Package mechanical data Dim. Min. A 2.2 A1 0.9 A2 0.03 B 0.4 B2 5.2 C 0. 4.9 G1 2. 46/50 PPAK ...

  • Page 47

    LFxxAB, LFxxC Tape & reel DPAK-PPAK mechanical data Dim. Min 12 6.80 Bo 10.40 Ko 2.55 Po 3.9 P 7.9 mm. Typ. Max. 330 13.0 13.2 0.504 0.795 2.362 22.4 6.90 7.00 ...

  • Page 48

    ... Order codes 7 Order codes Table 32. Order codes TO-220 TO-220FP (1) (1) LF15ABV LF15ABP (1) LF18CP (1) LF18ABP (1) LF25CP (1) LF25ABP LF33CV LF33ABV LF50CV LF50ABV LF50ABP (1) LF60CV LF60CP (1) LF60ABV LF60ABP (1) LF80CV LF80CP (1) LF80ABV LF80ABP (1) LF90CV LF90CP (1) LF90ABP (1) LF120CP LF120ABV 1. Available on request. 2. Automotive Grade products. 48/50 Packages ...

  • Page 49

    LFxxAB, LFxxC 8 Revision history Table 33. Document revision history Date Revision 21-Jun-2004 14 24-May-2006 15 02-Apr-2007 16 14-May-2007 17 26-Jul-2007 18 26-Nov-2007 19 16-Jan-2008 20 12-Feb-2008 21 10-Jul-2008 22 05-May-2010 23 16-Nov-2010 24 Document updating. Order codes updated. Order ...

  • Page 50

    ... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...