LD29080 series 800mA Fixed and adjustable output very low drop voltage regulator Features ■ Very low dropout voltage (Typ. 0.4 at 800mA) ■ Guaranteed output current up to 800mA ■ Fixed and adjustable output voltage (±1% at 25°C) ■ Internal current and thermal limit ■ Logic controlled electronic shutdown PPAK DPAK Description The LD29080 is a high current, high accuracy, low-dropout voltage regulators series. These regulators feature 400mV dropout voltages and very low ground current. Designed for high current loads, these devices also find applications in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. Typical application are in Power supply switching post regulation, Series power supply for monitors, Series power supply for VCRs and TVs, Computer Systems and Battery powered systems. Order codes Part numbers Packages Output voltage DPAK (T&R) PPAK (T&R) LD29080DT15R LD29080PT15R 1.5 V LD29080DT18R LD29080PT18R 1.8 V (1) LD29080DT25R LD29080PT25R 2.5 V LD29080DT33R LD29080PT33R 3.3 V LD29080DT50R LD29080PT50R 5.0 V LD29080DT80R LD29080PT80R 8.0 V (1) LD29080PTR ADJ 1. Available on request. May 2007 Rev. 3 1/21 www.st.com 21 LD29080 series Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 LD29080 series 1 Diagram Figure 1. Schematic diagram for adjustable version Figure 2. Schematic diagram for fixed version Diagram * Only for version with inhibit function. 3/21 Pin configuration LD29080 series 2 Pin configuration Figure 3. Pin connections (top view) PPAK Table 1. DPAK Pin description Symbol PPAK DPAK VI 2 1 GND 3 2 4 3 VO ADJ/N.C. INHIBIT (1) (2) 5 1 1. Not connect for fixed version. 2. Not internally pulled up; in order to assure the operating condition (device in ON mode), it must be connected to a positive voltage higher than 2V. Figure 4. Application circuit VO = VREF (1 + R1/R2) * Only for version with inhibit function. 4/21 LD29080 series Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol VI VINH 1. Parameter DC Input Voltage Inhibit Input Voltage Value Unit 30 (1) V 14 V IO Output Current Internally Limited mA PD Power Dissipation Internally Limited mW TSTG Storage Temperature Range -55 to 150 °C TOP Storage Temperature Range -40 to 125 °C Above 14V the device is automatically in shut-down. Note: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Table 3. Thermal data Symbol Parameter RthJC Thermal resistance junction-case RthJA Thermal resistance junction-ambient DPAK PPAK Unit 8 8 °C/W 100 100 °C/W 5/21 Electrical characteristics LD29080 series 4 Electrical characteristics Table 4. Electrical characteristics of LD29080#15 IO = 10mA, (Note 4) TJ = 25°C, VI = 3.5V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 3 to 7V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 3 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 3.8 ± 1V, IO = 400mA (Note 1) Iq Quiescent Current 2.5 1.485 1.5 V 1.463 65 1.537 75 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C 5 eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA 60 6/21 dB IO = 10mA, TJ = -40 to 125°C Isc Note: 1.515 mA µA A 0.8 2 V V 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. LD29080 series Table 5. Electrical characteristics Electrical characteristics of LD29080#18 IO = 10mA, (Note 4) TJ = 25°C, VI = 3.5V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 3 to 7.3V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 3 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 3.8 ± 1V, IO = 400mA (Note 1) VDROP Iq Dropout Voltage Quiescent Current 2.5 1.782 1.8 V 1.755 62 1.845 72 dB IO = 150mA, TJ = -40 to 125°C (Note 2) 0.1 IO = 400mA, TJ = -40 to 125°C (Note 2) 0.2 IO = 800mA, TJ = -40 to 125°C (Note 2) 0.4 0.7 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Isc Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C 5 eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA 72 Note: 1.818 V mA µA A 0.8 2 V V 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. 7/21 Electrical characteristics Table 6. LD29080 series Electrical characteristics of LD29080#25 IO = 10mA, (Note 4) TJ = 25°C, VI = 4.5V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 3.5 to 8V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 3.5 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 4.5 ± 1V, IO = 400mA (Note 1) VDROP Iq Dropout Voltage Quiescent Current 2.525 V 2.438 55 2.562 70 dB 0.1 IO = 400mA, TJ = -40 to 125°C (Note 2) 0.2 IO = 800mA, TJ = -40 to 125°C (Note 2) 0.4 0.7 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA 8/21 2.5 IO = 150mA, TJ = -40 to 125°C (Note 2) Isc Note: 2.475 V mA µA A 0.8 2 V V 5 100 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. LD29080 series Table 7. Electrical characteristics Electrical characteristics of LD29080#33 IO = 10mA, (Note 4) TJ = 25°C, VI = 5.3V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 4.3 to 8.8V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 4.3 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 5.3 ± 1V, IO = 400mA (Note 1) VDROP Iq Dropout Voltage Quiescent Current 3.3 3.333 V 3.218 52 3.382 67 dB IO = 150mA, TJ = -40 to 125°C (Note 2) 0.1 IO = 400mA, TJ = -40 to 125°C (Note 2) 0.2 IO = 800mA, TJ = -40 to 125°C (Note 2) 0.4 0.7 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Isc Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA Note: 3.267 V mA µA A 0.8 2 V V 5 132 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. 9/21 Electrical characteristics Table 8. LD29080 series Electrical characteristics of LD29080#50 IO = 10mA, (Note 4) TJ = 25°C, VI = 7V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 6 to 10.5V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 6 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 7 ± 1V, IO = 400mA (Note 1) VDROP Iq Dropout Voltage Quiescent Current 5.05 V 4.875 49 5.125 64 dB 0.1 IO = 400mA, TJ = -40 to 125°C (Note 2) 0.2 IO = 800mA, TJ = -40 to 125°C (Note 2) 0.4 0.7 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA 10/21 5 IO = 150mA, TJ = -40 to 125°C (Note 2) Isc Note: 4.95 V mA µA A 0.8 2 V V 5 320 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. LD29080 series Table 9. Electrical characteristics Electrical characteristics of LD29080#80 IO = 10mA, (Note 4) TJ = 25°C, VI = 10V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 13 V VI Operating Input Voltage IO = 10mA to 800mA VO Output Voltage IO = 10mA to 800mA, VI = 9 to 13V TJ = -40 to 125°C ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 9 to 13V 0.06 0.5 % SVR Supply Voltage Rejection f = 120 Hz, VI = 9 ± 1V, IO = 400mA (Note 1) VDROP Iq Dropout Voltage Quiescent Current 8 8.08 V 7.80 45 8.20 59 dB IO = 150mA, TJ = -40 to 125°C (Note 2) 0.1 IO = 400mA, TJ = -40 to 125°C (Note 2) 0.2 IO = 800mA, TJ = -40 to 125°C (Note 2) 0.4 0.7 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 1.2 Isc Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA Note: 7.92 V mA µA A 0.8 2 V V 5 320 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. 11/21 Electrical characteristics Table 10. Electrical characteristics of LD29080#ADJ IO = 10mA, (Note 4) TJ = 25°C, VI = 10V, VINH = 2V, CI = 330nF, CO = 10µF, unless otherwise specified) Symbol VI LD29080 series Parameter Test Conditions Min. Typ. Unit 13 V Operating Input Voltage IO = 10mA to 800mA ΔVO Load Regulation IO = 10mA to 800mA 0.2 1.0 % ΔVO Line Regulation VI = 2.5 to 13V, IO = 10mA 0.06 0.5 % 1.2423 Reference voltage IO = 10mA to 800mA, VI = 2.5 to 6.73V TJ 1.2177 = -40 to 125°C (Note 3) 1.1993 1.23 VREF SVR Supply Voltage Rejection Iq Quiescent Current f = 120 Hz, VI = 3.23 ± 1V, IO = 400mA (Note 1) 2.5 Max. 45 V 1.2607 75 IO = 10mA, TJ = -40 to 125°C 2 5 IO = 400mA, TJ = -40 to 125°C 8 20 IO = 800mA, TJ = -40 to 125°C 14 35 VI = 13V, VINH = GND, TJ = -40 to 125°C 130 180 µA 1 µA Adjust Pin Current TJ = -40 to 125°C Isc Short Circuit Current RL = 0 VIL Control Input Logic Low OFF MODE, TJ = -40 to 125°C VIH Control Input Logic High ON MODE, TJ = -40 to 125°C IINH Control Input Current VINH = 13V, TJ = -40 to 125°C 5 eN Output Noise Voltage BP = 10Hz to 100KHz, IO = 100mA 50 IADJ Note: 12/21 dB 1.2 mA A 0.8 2 V V 10 µA µVRMS 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V applied to VI. 3 Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VO. 4 In order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum load current of 2mA is required. LD29080 series Typical characteristics 5 Typical characteristics Figure 5. Output voltage vs temperature Figure 6. Reference voltage vs temperature Figure 7. Dropout voltage vs temperature Figure 8. Dropout voltage vs output current Figure 9. Quiescent current vs output current Figure 10. Quiescent current vs temperature 13/21 Typical characteristics Figure 11. Quiescent current vs supply voltage LD29080 series Figure 12. Quiescent current vs temperature Figure 13. Short circuit current vs temperature Figure 14. Adjust pin current vs temperature Figure 15. Supply voltage rejection vs temperature 14/21 Figure 16. Output voltage vs input voltage LD29080 series Figure 17. Stability vs CO Typical characteristics Figure 18. Line transient VI=3.5 to 13V, IO=10mA, VO=1.5V Figure 19. Load transient VI=3.5V, IO=10mA to 0.8A, VO=1.5V 15/21 Package mechanical data 6 LD29080 series 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. 16/21 LD29080 series Package mechanical data PPAK MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.4 0.6 0.015 0.023 B2 5.2 5.4 0.204 0.212 0.023 C 0.45 0.6 0.017 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 6.6 0.252 D1 E 5.1 6.4 E1 0.201 4.7 e 0.260 0.185 1.27 0.050 G 4.9 5.25 0.193 0.206 G1 2.38 2.7 0.093 0.106 H 9.35 10.1 0.368 L2 0.8 L4 0.6 L5 1 L6 1 1 2.8 0.397 0.031 0.023 0.039 0.039 0.039 0.110 0078180-E 17/21 Package mechanical data LD29080 series DPAK MECHANICAL DATA mm. inch DIM. MIN. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 TYP 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 MAX. MIN. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 6.6 0.252 5.1 6.4 0.260 0.090 4.6 10.1 0.173 0.368 0.039 2.8 0.8 0.181 0.397 0.110 0.031 1 0.023 0.2 0° 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.185 2.28 0.6 MAX. 0.200 4.7 4.4 9.35 1 TYP. 0.039 0.008 8° 0° 8° 0068772-F 18/21 LD29080 series Package mechanical data Tape & Reel DPAK-PPAK MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.0 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 MAX. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 19/21 Revision history LD29080 series 7 Revision history Table 11. Revision history Date Revision 15-Oct-2004 1 First Release. 20-Oct-2005 2 Order codes has been updated. 14-May-2007 3 Order codes has been updated. 20/21 Changes LD29080 series 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes 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. 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