LF33CPT STMicroelectronics, LF33CPT Datasheet

IC REG VLDO 500MA 3.3V P-PAK

LF33CPT

Manufacturer Part Number
LF33CPT
Description
IC REG VLDO 500MA 3.3V P-PAK
Manufacturer
STMicroelectronics
Datasheet

Specifications of LF33CPT

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.4V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
PPAK (4 leads + tab)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LF33CPT-TR
Manufacturer:
STMicroelectronics
Quantity:
26 000
Part Number:
LF33CPT-TRY
Manufacturer:
ST
0
Features
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.
November 2010
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
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
LF15AB
LF18AB
LF18C
Device summary
LF25AB
LF25C
LF33C
OUT
in DPAK and PPAK
LF33AB
LF50AB
LF50C
Very low drop voltage regulators with inhibit
Doc ID 2574 Rev 24
Part numbers
LF60AB
LF60C
LF80C
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.
PPAK
LF80AB
LF85AB
TO-220
LF85C
DPAK
LF90AB
LF120C
LF90C
LFxxAB
TO-220FP
PENTAWATT
LFxxC
LF120AB
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Related parts for LF33CPT

LF33CPT 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

... Electrical characteristics for LF25CDT-TRY (Automotive Grade Table 12. Electrical characteristics for LF33AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Table 13. Electrical characteristics for LF33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Table 14. Electrical characteristics for LF33CDT-TRY and LF33CPT-TRY (Automotive Grade Table 15. Electrical characteristics for LF50AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Table 16. Electrical characteristics for LF50ABDT-TRY (Automotive Grade Table 17. Electrical characteristics for LF50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 18 ...

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 Load regulation O I Quiescent current d SVR Supply voltage rejection ...

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

... LFxxAB, LFxxC Output voltages PPAK (tape and reel) (1) 1.5 V LF18CPT-TR 1.8 V 1.8 V LF18ABPT-TR 1.8 V LF25CPT-TR 2.5 V 2.5 V (1) 2.5 V 2.5 V LF33CPT-TR 3.3 V (2) LF33CPT-TRY 3.3 V 3.3 V LF50CPT-TR (2) LF50CPT-TRY LF50ABPT-TR (1) LF60CPT-TR (1) (1) LF60ABPT-TR LF85CPT-TR 8.5 V (2) LF85CPT-TRY 8.5 V (1) LF85ABPT-TR 8.5 V LF90CPT-TR ...

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. ...

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