LD2979M33TR STMicroelectronics, LD2979M33TR Datasheet
LD2979M33TR
Specifications of LD2979M33TR
Available stocks
Related parts for LD2979M33TR
LD2979M33TR Summary of contents
Page 1
... Table 1. Device summary Part numbers LD2979XX30 LD2979XX33 LD2979XX38 LD2979XX50 April 2008 Very low drop voltage regulators with inhibit Order codes LD2979M30TR LD2979M33TR LD2979M38TR LD2979M50TR Rev 14 LD2979xx SOT23-5L Output voltages 3.0 V 3.3 V 3.8 V 5.0 V 1/15 www.st.com ...
Page 2
Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
LD2979xx 1 Diagram Figure 1. Schematic diagram Diagram 3/15 ...
Page 4
Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) Table 2. Pin description Symbol V Input voltage I GND Ground INHIBIT Control switch ON/OFF NC Not to be connected V Output voltage O 1. Inhibit pin is not ...
Page 5
LD2979xx 3 Maximum ratings Table 3. Absolute maximum ratings Symbol V DC input voltage inhibit input voltage INH I Output current O P Power dissipation D T Storage temperature range STG T Operating junction temperature range OP ...
Page 6
Electrical characteristics 4 Electrical characteristics Table 4. Electrical characteristics for LD2979xx (refer to the test circuits O(NOM) Symbol Parameter V Output voltage O V Output voltage O V Output voltage O ...
Page 7
LD2979xx Table 4. Electrical characteristics for LD2979xx (continued) (refer to the test circuits O(NOM) Symbol Parameter I Inhibit input current I Output noise voltage eN (RMS mA ...
Page 8
Typical characteristics 5 Typical characteristics (unless otherwise specified T Figure 3. Output voltage vs temperature Figure 5. Output voltage vs input voltage Figure 7. Dropout voltage vs temperature 8/ °C) A Figure 4. Output voltage vs input voltage ...
Page 9
LD2979xx Figure 9. Short circuit current vs dropout voltage Figure 11. Supply voltage rejection vs frequency Figure 13. Inhibit current vs temperature Typical characteristics Figure 10. Inhibit voltage vs temperature Figure 12. Load transient response C = 10µF (ESR = ...
Page 10
Typical characteristics Figure 15. Line transient response C = 10µF (ESR = 1 at 1kHz) O 10/15 LD2979xx ...
Page 11
LD2979xx 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 ...
Page 12
Package mechanical data Dim. Min. A 0.90 A1 0.00 A2 0.90 b 0.35 C 0.09 D 2. 2.60 L 0.10 12/15 SOT23-5L mechanical data mm. Typ. Max. 1.45 0.10 1.30 0.50 0.20 3.00 1.75 0.95 3.00 ...
Page 13
LD2979xx Tape & reel SOT23-xL mechanical data Dim. Min 12 3.13 Bo 3.07 Ko 1.27 Po 3.9 P 3.9 mm. Typ. Max. Min. 180 13.0 13.2 0.504 0.795 2.362 14.4 3.23 3.33 ...
Page 14
Revision history 7 Revision history Table 5. Document revision history Date Revision 15-Mar-2005 10 03-Jul-2006 11 16-May-2007 12 08-Jun-2007 13 09-Apr-2008 14 14/15 Add tape & reel for TO-92. Order codes updated. Order codes updated. Order codes updated. Modified: Table ...
Page 15
... LD2979xx 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. ...