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  this is information on a product in full production. may 2014 docid022166 rev 3 1/17 LDCL015 150 ma capless ultra low drop linear regulator ics datasheet - production data features ? no input or output capacitor required ? input voltage from 1.8 v to 5.5 v ? very low drop: 50 mv at 100 ma load ? 2% output voltage accuracy ? output voltage tolerance over temperature: 3% ? low noise ? 150 ma guaranteed output current ? available in fixed and adjustable output voltages, from 0.8 v in 100 mv steps ? internal current and thermal limit ? operating temperature range: - 40 c to 125 c ? sot23 5-lead package applications ? space-sensitive applications ? battery-powered equipment ? cordless and mobile phones ? industrial and medical equipment ? portable equipment description the LDCL015 provides 150 ma of maximum current from an input voltage ranging from 1.8 v to 5.5 v, with a typical dropout voltage of 50 mv. it is stable with no input or output capacitor. low quiescent current, low noise and capless operation make it suitable for low power battery- powered applications and allows the reduction of board size. typical power supply rejection ratio is 52 db at low frequencies, and starts to roll off at 10 khz. the enable logic control function puts the LDCL015 in shutdown mode, reducing the total current consumption to less than 1 a. the device also includes short-circuit constant current limit and thermal protection. typical applications are mobile phones, personal digital assistants and similar battery-powered systems. sot23-5l table 1. device summary markings order codes output voltages cl33 LDCL015m33r 3.3 v clad LDCL015mr adjustable from 0.8 www.st.com
contents LDCL015 2/17 docid022166 rev 3 contents 1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7.1 general operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 7.2 thermal and short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 7.3 output voltage setting for adj version . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 7.4 enable pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 10 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
docid022166 rev 3 3/17 LDCL015 block diagram 17 1 block diagram figure 1. LDCL015 block diagram
pin configuration LDCL015 4/17 docid022166 rev 3 2 pin configuration figure 2. pin connections (top view) table 2. pin description pin n symbol name and function 1v in input voltage 2 gnd ground 3 en enable pin. the device is in off state when this pin is pulled low 4 adj/nc feedback pin for adjustable version.not connected on fixed version 5v out output voltage
docid022166 rev 3 5/17 LDCL015 typical application 17 3 typical application figure 3. typical application schematic - adjustable version figure 4. typical application schematic - fixed v out version note: 1 r1 and r2 are calculated according to the following formula: r1 = r2 x (v out /v adj -1). 2c in and c out are optional. am09360v1 out gnd in en adj on off cin r1 r2 cout LDCL015 am09361v1 out gnd in en cout on off cin cout LDCL015
maximum ratings LDCL015 6/17 docid022166 rev 3 4 maximum ratings note: absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these condition is not implied. table 3. absolute maximum ratings symbol parameter value unit v in input supply voltage -0.3 to +7 v v out output voltage -0.3 to v in +0.3 v i out output current internally limited a en, adj enable and feedback pin voltage -0.3 to +v in +0.3 v p d power dissipation internally limited w esd machine model 300 v human body model 3000 t j-op operating junction temperature -40 to 125 c t j-max maximum junction temperature 150 c t stg storage temperature -65 to 150 c table 4. thermal data symbol parameter value unit r thjc thermal resistance junction-case 81 c/w r thja thermal resistance junction-ambient 255 c/w
docid022166 rev 3 7/17 LDCL015 electrical characteristics 17 5 electrical characteristics t j = 25 c, v in = v out + 0.5 v; v out = 1.6 v; c in = c out = 100 nf; i out =1 ma; v en =v in . table 5. electrical characteristics symbol parameter test conditions min. typ. max. unit v in operating input voltage range 1.8 5.5 v v out (1) output voltage accuracy t j =25c -2.0 2.0 % -40c typical performance characteristics LDCL015 8/17 docid022166 rev 3 6 typical performance characteristics figure 5. output voltage vs. temperature (v out = 3.3 v, i out = 1 ma) figure 6. output voltage vs. temperature (v out = 0.8 v, i out = 1 ma) figure 7. output voltage vs. temperature (v out = 3.3 v, i out = 150 ma) figure 8. output voltage vs. temperature (v out = 0.8 v, i out = 1 ma) figure 9. output voltage vs. input voltage (v out = 0.8 v) figure 10. output voltage vs. input voltage (v out = 3.3 v) 3.16 3.18 3.2 3.22 3.24 3.26 3.28 3.3 3.32 3.34 3.36 3.38 3.4 3.42 3.44 -50 -25 0 25 50 75 100 125 150 v out [v] t [c] v in = 3.8 v, i out = 1 ma v out = 3.3 v 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 -50 -25 0 25 50 75 100 125 150 v out [v] t [c] v in = 2 v, i out = 1 ma v out @0.8 v 3.16 3.18 3.2 3.22 3.24 3.26 3.28 3.3 3.32 3.34 3.36 3.38 3.4 3.42 3.44 -50 -25 0 25 50 75 100 125 150 v out [v] t [c] v in = 3.8 v, i out = 150 ma v out = 3.3 v 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 -50 -25 0 25 50 75 100 125 150 v out [v] t [c] v in = 2 v, i out = 150 ma v out @0.8 v 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0123456 v out [v] v in [v] v en = v in ; v in = from 0 v to 5.5 v; i out = 1 ma; c in = c out = 0.1 f v out @0.8 v 0 0.5 1 1.5 2 2.5 3 3.5 0123456 v out [v] v in [v] v out = 3.3 v v en = v in ; v in = from 0 v to 5.5 v; i out = 1 ma; c in = c out = 0.1 f
docid022166 rev 3 9/17 LDCL015 typical performance characteristics 17 figure 11. dropout voltage vs. temperature figure 12. svr vs. frequency (c out = 0.1 f) figure 13. svr vs. frequency, no c out figure 14. noise voltage vs. c out figure 15. line transient (rising), no c out figure 16. line transient (falling), no c out v en = v cc = from 3.8 v to 5.5 v; i out = 1 ma; c in = 0.1 f; no c out v en = v cc = from 5.5 v to 3.8 v; i out = 1 ma; c in = 0.1 f; no c out 0 50 100 150 200 250 300 -75 -50 -25 0 25 50 75 100 125 150 vdropout [mv] t [c] v out = 3.3 v v en = v in ; i out = 150 ma c in = c out = 0.1 f, i out = 10 ma v out @0.8 v 10 15 20 25 30 35 40 45 50 55 60 65 70 0.1 1 10 100 1000 svr [db] f [khz] 10 15 20 25 30 35 40 45 50 55 60 65 70 0.1 1 10 100 1000 svr [db] f [khz] c in = 0.1 f, no c out, i out =10 ma v out @0.8 v                  & 287 q) 1rlvhyrowdjh ?9upv9  9 287 9 v out = 3.3 v v out = 3.3 v
typical performance characteristics LDCL015 10/17 docid022166 rev 3 figure 17. line transient (rising), c out = 1 f figure 18. line transient (falling), c out = 1 f v en = v cc = from 3.8 v to 5.5 v; i out = 1 ma; c in = 0.1 f; c out = 1 f v en = v cc = from 5.5 v to 3.8 v; i out = 1 ma; c in = 0.1 f; c out = 1 f figure 19. load transient, no c out figure 20. load transient c out = 1 f v en = v in = 3.8 v; i out = from 1 to 150 ma c in = 0.1 f no c out v en = v in = 3.8 v; i out = from 1 to 150 ma c in = 0.1 f c out = 1 f v out = 3.3 v v out = 3.3 v v out = 3.3 v v out = 3.3 v
docid022166 rev 3 11/17 LDCL015 application information 17 7 application information 7.1 general operation the main feature of the LDCL015 is its capability to operate with or without input and output capacitors. to achieve this goal, the ldo architecture is based on a robust operational amplifier which has sufficient phase margin over all positions of the output capacitor pole. the LDCL015 can operate with a 100 nf output capacitor, but also without an output capacitor, showing in both configurations good supply voltage rejection, stability and dynamic performance. 7.2 thermal and short-circuit protection the LDCL015 is self-protected from short-circuit condition and overtemperature. when the output load is higher than that supported by the device, the output current is increased until the limit of 220 ma (typ) is reached, at which point the current is kept constant even when the load impedance is zero. thermal protection acts when the junction temperature reaches 170 c. at this point the ic is completely shut down. as soon as the junction temperature falls back below 150 c, the device begins operating again. to calculate the maximum power that the device can dissipate while keeping the junction temperature below the t j-op , the following formula is used: equation 1 p dmax = (125-t amb ) / r thja 7.3 output voltage setting for adj version in the adjustable version, the output voltage can be set from 0.8 v up to the input voltage, minus the voltage drop across the pass transistor (dropout voltage), by connecting a resistor divider between the adj pin and the output, thus allowing remote voltage sensing. the resistor divider should be selected using the following equation: equation 2 v out = v adj (1 + r1 / r2), with v adj = 0.8 v (typ.) it is recommended to use resistors with values in the range of 10 k to 50 k . lower values can also be suitable, but will increase current consumption. 7.4 enable pin the LDCL015 features an enable function. when the en voltage is higher than 2 v, the device is on; if it is lower than 0.8 v, the device is off. in shutdown mode, the current consumption is lower than 1 a. the en pin does not have an internal pull-up, which means that it cannot be left floating if it is not used.
package mechanical data LDCL015 12/17 docid022166 rev 3 8 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: www.st.com . ecopack ? is an st trademark. figure 21. sot23-5l mechanical drawing bn
docid022166 rev 3 13/17 LDCL015 package mechanical data 17 figure 22. sot23-5l footprint (dimensions in mm) table 6. sot23-5l mechanical data dim. mm min. typ. max. a 0.90 1.45 a1 0 0.15 a2 0.90 1.30 b 0.30 0.50 c 2.09 0.20 d2.95 e1.60 e0.95 h2.80 l 0.30 0.60 08 bn
packaging mechanical data LDCL015 14/17 docid022166 rev 3 9 packaging mechanical data figure 23. sot23-5l tape and reel drawing
docid022166 rev 3 15/17 LDCL015 packaging mechanical data 17 table 7. sot23-5l tape and reel mechanical data dim. mm min. typ. max. a 180 c 12.8 13.0 13.2 d20.2 n60 t 14.4 ao 3.13 3.23 3.33 bo 3.07 3.17 3.27 ko 1.27 1.37 1.47 po 3.9 4.0 4.1 p 3.9 4.0 4.1
revision history LDCL015 16/17 docid022166 rev 3 10 revision history table 8. document revision history date revision changes 05-sep-2011 1 first release. 15-sep-2011 2 added part number LDCL015xx to document heading and table 1 . modified document title. removed section 8: other output voltage versions of the LDCL015 available on request. 09-may-2014 3 part numbers LDCL015xx and LDCL015xx33 changed to LDCL015. updated section 6: typical performance characteristics and section 8: package mechanical data . added section 9: packaging mechanical data . minor text changes.
docid022166 rev 3 17/17 LDCL015 17 please read carefully: 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 he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statem ents and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or register ed trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2014 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - swed en - switzerland - united kingdom - united states of america www.st.com


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