ST1L02PU25R

ST1L02xx Very low quiescent BiCMOS voltage regulator Features ■ Fixed output voltage: 1.8 V, 2.5 V, 3.3 V (1.5 V, under customer request) ■ Output voltage tolerance: ± 2 % at 25 °C ■ Output current capability: 1 A minimum ■ Very low quiescent current: max 500 µA over temperature range ■ Typ. dropout 0.7 V (@ IO = 1 A) ■ Stable with low ESR ceramic capacitors ■ Available with and without the external output voltage sense pin ■ Thermal shutdown protection with hysteresis ■ Over current protection ■ Operating junction temperature range: from 0 to 125 °C DFN6D (3x3 mm) Internal protection circuitry includes thermal protection with hysteresis and over current limiting. The ST1L02xx is especially suitable for data storage applications such as HDDs, where can be used to supply the read channel and memory chips requiring 3.3 V. The regulator is available in the small and thin DFN6D (3x3 mm) package. Description The ST1L02xx is a low drop linear voltage regulator capable to supply up to 1 A output current. The output voltage is fixed to 3.3 V, but under customer request, it’s possible to have also 1.5 V, 1.8 V and 2.5 V. Thanks to the BiCMOS technology, the quiescent current is well controlled and maintained below 650 µA over the whole allowed junction temperature range. The ST1L02xx is stable with low ESR output ceramic capacitors. Table 1. Device summary Part numbers Order codes Package ST1L02XX18 ST1L02PU18R DFN6D (3x3 mm) ST1L02XX25 ST1L02PU25R DFN6D (3x3 mm) ST1L02XX33 ST1L02PU33R DFN6D (3x3 mm) ST1L02XX ST1L02PUR (1) DFN6D (3x3 mm) 1. Only 3.3 V March 2008 Rev 8 1/19 www.st.com 19 ST1L02xx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/19 ST1L02xx Diagram 1 Diagram Figure 1. Schematic diagram 3/19 Pin configuration ST1L02xx 2 Pin configuration Figure 2. Pin connections (top through view) ST1L02PXxx ST1L02PX * * Only 3.3 V. Table 2. Pin description Pin n° for ST1L02PXxx Pin n° for ST1L02PX Symbol 1, 3 1, 4, 5 N.C. Not connected. 2 6 GND Ground. The exposed metallic pad of the package is connected to GND. 4 2 VO 5 - VO_SENSE 6 3 VI 4/19 Name and function Output voltage pin. Bypass with a 4.7 µF capacitor to GND. Sense output voltage pin. Must be connected to pin 4. Supply voltage input pin. Bypass with a 4.7 µF capacitor to GND. ST1L02xx Maximum ratings 3 Maximum ratings Table 3. Absolute maximum ratings Symbol Parameter Value Unit VI DC supply voltage 10 V PTOT Power dissipation internally limited W Output current internally limited A 0 to 150 °C -65 to 150 °C 260 °C IO TOP Operating junction temperature range TSTG Storage temperature range (1) TLEAD Lead temperature (Soldering) 10 Sec. 1. Storage temperature >125 °C are acceptable only if the regulator is soldered to a PCBA. Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 4. Thermal data Symbol Parameter Value Unit RthJC Thermal resistance junction-case 10 °C/W RthJA Thermal resistance junction-ambient 55 °C/W 5/19 Electrical characteristics ST1L02xx 4 Electrical characteristics Table 5. Electrical characteristics for ST1L02XX18 (refer to the typical application schematic, VI = 4.5 V to 7 V, IO = 5 mA to 1 A, CI = 4.7 µF, CO = 4.7 µF, TJ = 0 to 125 °C, unless otherwise specified). Typical values are intended at TJ = 25 °C unless otherwise specified. Symbol Parameter Test Typ. Max. Unit VO Output voltage VI = 4.75 V to 5.25 V, T=25°C 1.764 1.8 1.836 V VO Output voltage VI = 4.75 V to 5.25 V 1.746 1.8 1.854 V ΔVO Line regulation VI = 4.75 V to 5.25 V 15 mV ΔVO Load regulation VI = 4.75 V, IO = 10 mA to 1 A 10 mV Output current limit VI = 5.5 V IS IOMIN Dropout voltage (1) IQ Quiescent current IQ Quiescent current Supply voltage rejection (2) mA IO = 0.8 A 1.6 V IO = 1 A 1.6 V VI = 5 V, IO = 2 mA to 1 A, T = 25°C 500 µA VI = 7 V, IO = 2 mA to 1 A 650 µA VI = 5 ± 0.5 V, IO = 5 mA, f = 120 Hz B = 10 Hz to 10 kHz, VI = 5 V, IO = 5 mA ΔVO/ΔIO Load transient (rising) (3) VI = 5 V, any 200 mA step from 100 mA to 1 A, tR ≥ 1 µs ΔVO/ΔIO Load transient (falling) (3) ΔVO/ΔVI Start-up transient (3) ΔVO/ΔIO Short circuit removal response TSH A 2 RMS Output noise (2) eN 1.0 Minimum output current for regulation Vd SVR (3) 50 75 dB 0.003 %VO 5 %VO VI = 5 V, IO = 1 A to 10 mA, tF ≥ 1 µs 3.6 V VI =0 V to 5 V, IO = 10 mA to 1 A, tR ≥ 1 µs 3.5 V VI = 5 V, IO = short to 10 mA 3.5 V Thermal shutdown trip point (3) VI = 5 V 1. See minimum start-up voltage, VI = 3.3 V. 2. Guaranteed by design. Not tested in production. 3. CI = 10 µF, CO = 10 µF, all X7R ceramic capacitors. 6/19 Min. 165 °C ST1L02xx Table 6. Electrical characteristics Electrical characteristics for ST1L02XX25 (refer to the typical application schematic, VI = 4.5 V to 7 V, IO = 5 mA to 1 A, CI = 4.7 µF, CO = 4.7 µF, TJ = 0 to 125 °C, unless otherwise specified). Typical values are intended at TJ = 25 °C unless otherwise specified. Symbol Parameter Test Min. Typ. Max. Unit 2.45 2.5 2.55 V 2.4375 2.5 2.5625 V VO Output voltage VI = 4.75 V to 5.25 V, T = 25°C VO Output voltage VI = 4.75 V to 5.25 V ΔVO Line regulation VI = 4.75 V to 5.25 V 15 mV ΔVO Load regulation VI = 4.75 V, IO = 10 mA to 1 A 10 mV Output current limit VI = 5.5 V IS IOMIN Dropout voltage (1) IQ Quiescent current IQ Quiescent current Supply voltage rejection (2) 1.0 V IO = 1 A 0.7 1.1 V VI = 5 V, IO = 2 mA to 1 A, T= 25°C 500 µA VI = 7 V, IO = 2 mA to 1 A 650 µA VI = 5 ± 0.5 V, IO = 5 mA, f = 120 Hz ΔVO/ΔIO Load transient (rising) (3) VI =5 V, any 200 mA step from 100mA to 1A, tR ≥ 1 µs ΔVO/ΔIO Load transient (falling) (3) ΔVO/ΔVI Start-up transient (3) ΔVO/ΔIO Short circuit removal response TSH mA 0.6 B = 10 Hz to 10 kHz, VI = 5V, IO = 5 mA (3) 2 IO = 0.8 A RMS Output noise (2) eN A Minimum output current for regulation Vd SVR 1.0 50 75 dB 0.003 %VO 5 %VO VI = 5 V, IO = 1 A to 10 mA, tF ≥ 1 µs 3.6 V VI =0 V to 5 V, IO = 10 mA to 1 A, tR ≥ 1 µs 3.5 V VI = 5 V, IO = short to 10 mA 3.5 V Thermal shutdown trip point (2) VI = 5 V 165 °C 1. See minimum start-up voltage, VI = 3.2 V. 2. Guaranteed by design. Not tested in production 3. CI = 10 µF, CO = 10 µF, all X7R ceramic capacitors. 7/19 Electrical characteristics Table 7. ST1L02xx Electrical characteristics for ST1L02XX33 (refer to the typical application schematic, VI = 4.5V to 7V, IO = 5mA to 1A, CI = 4.7µF, CO = 4.7 µF, TJ = 0 to 125 °C, unless otherwise specified). Typical values are intended at TJ = 25 °C unless otherwise specified. Symbol Parameter Test Min. Typ. Max. Unit VO Output voltage VI = 4.75 V to 5.25 V, T = 25°C 3.234 3.3 3.366 V VO Output voltage VI = 4.75 V to 5.25 V 3.2175 3.3 3.3825 V ΔVO Line regulation VI = 4.75 V to 5.25 V 15 mV ΔVO Load regulation VI = 4.75 V, IO = 10 mA to 1 A 10 mV Output current limit VI = 5.5 V IS IOMIN Dropout voltage IQ Quiescent current IQ Quiescent current Supply voltage rejection (2) 1.0 V IO = 1 A 0.7 1.1 V VI = 5 V, IO = 2 mA to 1 A, T= 25°C 500 µA VI = 7 V, IO = 2 mA to 1 A 650 µA VI = 5 ± 0.5V, IO = 5 mA, f = 120 Hz ΔVO/ΔIO Load transient (rising) (1) VI = 5 V, any 200 mA step from 100 mA to 1 A, tR ≥ 1 µs ΔVO/ΔIO Load transient (falling) (1) ΔVO/ΔVI Start-up transient (1) ΔVO/ΔIO Short circuit removal response TSH 50 75 dB 0.003 %VO 5 %VO VI = 5 V, IO = 1 A to 10 mA, tF ≥ 1 µs 3.6 V VI =0 V to 5 V, IO = 10 mA to 1 A, tR ≥ 1 µs 3.5 V VI = 5 V, IO = short to 10 mA 3.5 V Thermal shutdown trip point (2) VI = 5 V 1. CI = 10 µF, CO = 10 µF, all X7R ceramic capacitors. 2. Guaranteed by design. Not tested in production. 8/19 mA 0.6 B = 10 Hz to 10 kHz, VI = 5 V, IO = 5 mA (1) 2 IO = 0.8 A RMS Output noise (2) eN A Minimum output current for regulation Vd SVR 1.0 165 °C ST1L02xx Typical application 5 Typical application Figure 3. Application schematic for ST1L02PM Figure 4. Application schematic for ST1L02PMxx Note: The regulator is designed to be stable with either tantalum and ceramic capacitors on the input and the output. The expected values of the input and output ceramic capacitors are from 1 µF to 22 µF with 4.7 µF typical. The input capacitor must be connected within 0.5 inches of the VI terminal. The output capacitor must also be connected within 0.5 inches of output pin. There is no upper limit to the value of the input capacitor. 9/19 Typical characteristics ST1L02xx 6 Typical characteristics Figure 5. Output voltage vs temperature Figure 6. Line regulation vs temperature Figure 7. Line regulation vs temperature Figure 8. Load regulation vs temperature Figure 9. Dropout voltage vs temperature Figure 10. Quiescent current vs temperature 10/19 ST1L02xx Typical characteristics Figure 11. Quiescent current vs temperature Figure 12. Quiescent current vs temperature Figure 13. Quiescent current vs temperature Figure 14. Quiescent current vs output current Figure 15. Supply voltage rejection vs temperature Figure 16. Supply voltage rejection vs frequency 11/19 Typical characteristics Figure 17. Output noise vs frequency ST1L02xx Figure 18. Change of VO with step load change VI=5V, IO=100mA to 300mA, CO=10μF, CI=10μF, tRISE≥1µs Figure 19. Change of VO with step load change VI=5V, IO=300mA to 500mA, CO=10μF, CI=10μF, tRISE≥1µs Figure 20. Change of VO with step load change VI=5V, IO=500mA to 700mA, CO=10μF, CI=10μF, tRISE≥1µs, TJ=25°C Figure 21. Change of VO with step load change Figure 22. Change of VO with step load change VI=5V, IO=700mA to 900mA, CO=10μF, CI=10μF, tRISE≥1µs, TJ=25°C VI=5V, IO=10mA to S.C., CO=10μF, CI=10μF, tRISE≥1µs, TJ=25°C 12/19 ST1L02xx Typical characteristics Figure 23. Line transient VI = 4.75 V to 5.25 V, IO = 500 mA, CO=10 µF, CI = 2.2 µF, tRISE ≥ 1 µs 13/19 Package mechanical data 7 ST1L02xx 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 inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 14/19 ST1L02xx Package mechanical data DFN6D (3x3 mm) mechanical data mm. inch. Dim. Min. A 0.80 A1 0 A3 0.02 Max. Min. 1.00 0.031 0.05 0 0.20 b 0.23 D 2.90 D2 2.23 E 2.90 E2 1.50 e L Typ. 3.00 3.00 0.40 Max. 0.039 0.001 0.002 0.008 0.45 0.009 3.10 0.114 2.50 0.088 3.10 0.114 1.75 0.059 0.95 0.30 Typ. 0.018 0.118 0.122 0.098 0.118 0.122 0.069 0.037 0.50 0.012 0.016 0.020 7946637B 15/19 Package mechanical data ST1L02xx Tape & Reel QFNxx/DFNxx (3x3) Mechanical Data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 16/19 Max. 0.504 0.519 18.4 0.724 Ao 3.3 0.130 Bo 3.3 0.130 Ko 1.1 0.043 Po 4 0.157 P 8 0.315 ST1L02xx Package mechanical data Figure 24. DFN6 (3x3 mm) footprint recommended data 17/19 Revision history ST1L02xx 8 Revision history Table 8. Document revision history Date Revision 25-Feb-2005 1 First release. 10-Jan-2006 2 Add new order codes and tables of the electrical characteristics. 16-May-2006 3 General feature has been updated and add note 3 in table 6. 05-Jul-2006 4 Updated mechanical data DFN6 (3x3). 22-Feb-2007 5 Add note in Figure 2 and in order codes. 03-Apr-2007 6 Add order codes and mechanical data DFN6D. 05-Sep-2007 7 Add Table 1 in cover page. 12-Mar-2008 8 Removed: mechanical data DFN6. 18/19 Changes ST1L02xx 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 herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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