L4989D013TR STMicroelectronics, L4989D013TR Datasheet
L4989D013TR
Specifications of L4989D013TR
Available stocks
Related parts for L4989D013TR
L4989D013TR Summary of contents
Page 1
... Thermal shutdown and short circuit protection ■ Wide temperature range (T j Table 1. Device summary Package SO-8 SO-20 November 2008 Low power voltage regulator =150mA -40°C to 150°C) Tube L4989D L4989MD Rev 3 L4989 SO-8 SO-20 Order codes Tape & reel L4989D013TR L4989MD013TR 1/19 www.st.com 19 ...
Page 2
Contents Contents 1 Block diagram and pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . ...
Page 3
L4989 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 5
L4989 1 Block diagram and pin configuration Figure 1. Block diagram Block diagram and pin configuration 5/19 ...
Page 6
Block diagram and pin configuration Table 2. Pins description Pin SO-8(D) name WEn 1 Gnd 2 Gnd Res 3 Vcr 4 Vcw N.C. Figure 2. Pins configuration WEn 1 2 GND Res 3 ...
Page 7
L4989 2 Electrical specifications 2.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol V DC supply voltage Vsdc I Input current Vsdc V DC output voltage output current Vo V Watchdog input voltage Wi V Open ...
Page 8
Electrical specifications 2.3 Electrical characteristics V =5.6V to 31V Table 5. General Pin Symbol Vo V o_ref Vo I short_13 Vo I lim Vs line Vo V load Vs Vs, Vo SVR Vs, ...
Page 9
L4989 Table 6. Reset Pin Symbol Res Vres_l Res I Res_lkg Res R Res Res Vo_th Vcr Vrlth Vcr Vrhth Vcr Icr Vcr Idr Res Trr_2 Res Trd 1. When Vo becomes lower than 4V, the reset reaction time decreases ...
Page 10
Electrical specifications Table 8. Watchdog Enable Pin Symbol WEn V WEn_l WEn V WEn_h WEn V WEn_hy WEn I_leak 10/19 Parameter Test condition Enable input low voltage Enable input high voltage Enable input hysteresis Pull down current Vs = 13.5V ...
Page 11
L4989 3 Application information 3.1 Voltage regulator The voltage regulator uses a p-channel MOS transistor as a regulating element. With this structure a very low dropout voltage at current up to 150mA is obtained. The output voltage is regulated up ...
Page 12
Application information Figure 4. Reset timing diagram Wi Vo trr < Vcr Res 3.3 Watchdog A connected microcontroller is monitored by the watchdog input Wi. If pulses are missing, the Reset output pin is set to low. The pulse sequence ...
Page 13
L4989 4 Package and packing information ® 4.1 ECOPACK 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 ...
Page 14
Package and packing information Table 9. SO-8 mechanical data Symbol ( ( ccc 1. Dimensions D does not include mold flash, protrusions or gate burrs. Mold flash, ...
Page 15
L4989 4.3 SO-20 package information Figure 7. SO-20 package dimensions Table 10. SO-20 mechanical data Symbol ( ddd 1. “D” dimension does not include mold flash, protusions or gate ...
Page 16
Package and packing information 4.4 SO-8 packing information Figure 8. SO-8 tube shipment (no suffix) Figure 9. SO-8 tape and reel shipment (suffix “TR”) Tape dimensions According to Electronic Industries Association (EIA) Standard 481 rev. A, Feb. 1986 Tape width ...
Page 17
L4989 4.5 SO-20 packing information Figure 10. SO-20 tube shipment (no suffix) C Figure 11. SO-20 tape and reel shipment (suffix “TR”) Tape dimensions According to Electronic Industries Association (EIA) Standard 481 rev. A, Feb. 1986 Tape width Tape Hole ...
Page 18
Revision history 5 Revision history Table 11. Document revision history Date Mar-2004 13-Feb-2007 18-Nov-2008 18/19 Revision 1 Initial release Changed document maturity status. 2 Added SO-8 packing information Document reformatted and restructured. Added Table 1: Device 3 Added list of ...
Page 19
... L4989 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. ...