LD1580

LD1580 STMICROELECTRONICS | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 18

Technical content

■ OUTPUT CURRENT LIMIT ■ LOW DROPOUT VOLTAGE: TYPICALLY 400mV AT 7A OUTPUT CURRENT ■ OUTPUT VOLTAGE REMOTE SENSE PIN ■ FAST TRANSIENT RESPONSE ■ THERMAL SHUTDOWN PROTECTION WITH HYSTERESIS ■ WIDE OPERATING TEMPERATURE RANGE -40°C TO 125°C ■ NO SUPPLY SEQUENCING PROBLEMS IN DUAL SUPPLY MODE ■ OUTPUT VOLTAGES AVAILABLE 1.5 V, 1.8V, 2.5 V, 3.0 V, 3.3 V ADJUSTABLE.

DESCRIPTION

The LD1580 is a very low dropout positive linear voltage regulator particularly suitable in applications requiring output currents up to 7 A. The LD1580 typical dropout voltage is 400mV at 7A while it decreases at lighter loads. This very low dropout is achieved thanks to a second input voltage pin, named V CONTROL , which is also responsable of the output power stage driving. The LD1580 is provided with an output voltage remote sense pin which reduces dramatically any output voltage variations that could occur due to load changes. On fixed voltage devices, the ADJ pin is still available. A small capacitor on this pin helps to improve transient response. LD1580

7 A VERY LOW DROP POSITIVE VOLTAGE REGULATOR

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. SCHEMATIC DIAGRAM HEPTAWATT TM PENTAWATT TM P2PAK SPAK-5L SPAK-7L PRELIMINARY DATA

The LD1580 also features a built-in output current limit function and a thermal shutdown protection with hysteresis which prevents from excessive power dissipation in case of insufficient heatsinking. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±2% at the maximum output current and over the full temperature range. ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. THERMAL DATA CONNECTION DIAGRAM (top view) Symbol Parameter Value Unit VPOWER DC V POWER voltage from -0.3 to 6 V VCONTROL DC V CONTROL voltage from -0.3 to 13 V IOUT Output Current Internally Limited A P D Power Dissipation Internally Limited W Tstg Storage Temperature Range -55 to +150 °C Top Operating Junction Temperature Range -40 to +125 °C Symbol Parameter PENTAWATT TM HEPTAWATT TM P2PAK SPAK-5L SPAK-7L Unit R thj-case Thermal Resistance Junction-case 3 3 2 °C/W Rthj-amb Thermal Resistance Junction-ambient 50 62.5 TBD °C/W HEPTAWATT TM PENTAWATT TM P2PAK SPAK-5L SPAK-7L

(*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version. TYPICAL APPLICATION CIRCUITS FOR FIXED VERSION TYPICAL APPLICATION CIRCUITS FOR ADJUSTABLE VERSION P2PAK (*) PENTAWATT SP AK-5L (*) SPAK-7L (*) HEPTAWATT OUTPUT VOLTAGE LD1580K7-15 LD1580V7V15 1.5V LD1580K7-18 LD1580V7V18 1.8V LD1580K7-25 LD1580V7V25 2.5V LD1580K7-30 LD1580V7V30 3.0V LD1580K7-33 LD1580V7V33 3.3V LD1580P2T LD1580V5V LD1580K5 Adjustable R 2VO =V REF (1 + )R 1

ELECTRICAL CHARACTERISTICS FOR LD1580xx15 (Tj= -40 °C to 125 °C, CP =330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =4 V, VPOWER =2.3 V Tj=25 °C, IOUT =0 mA 1.485 1.5 1.515 V VCONTROL = 3Vt o1 2V VPOWER =2.1 V to 5.5 V IOUT =0 to 7 A 1.470 1.5 1.530 ΔV O Line Regulation V CONTROL = 2 . 6 5Vt o1 2V VPOWER =2 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =4 V, VPOWER =2.3 V IOUT =0 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =4 V, VPOWER =2.3 V IOUT =100 mA 61 0 m A VCONTROL =4 V, VPOWER =2.3 V IOUT =4 A 30 60 VCONTROL =4 V, VPOWER =2 V IOUT =4 A 33 70 VCONTROL =4 V, VPOWER =2.3 V IOUT =7 A 60 120 IQ Quiescent Current V CONTROL =4 V, VPOWER =2.3 V IOUT =0 A 51 0 m A IOUT Output Current Limit V CONTROL =4 V, VPOWER =2.3 V (Note 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =4 V Avg, VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 60 80 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =2.3 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =2.3 V, IOUT =1 A 0.95 1.15 VPOWER =2.3 V, IOUT =4 A 1 1.2 VPOWER =2.3 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =4 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =4 V, IOUT =4 A 0.2 0.4 VCONTROL =4 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5 °C

ELECTRICAL CHARACTERISTICS FOR LD1580xx18 (Tj= -40 °C to 125 °C, CP =330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =4 V, VPOWER =2.6 V Tj=25 °C, IOUT =0 mA 1.782 1.8 1.818 V VCONTROL = 3 . 3Vt o1 2V VPOWER =2.4 V to 5.5 V IOUT =0 to 7 A 1.764 1.8 1.836 ΔV O Line Regulation V CONTROL = 2 . 9 5Vt o1 2V VPOWER =2.3 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =4.3 V, VPOWER =2.6 V IOUT =0 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =4.3 V, VPOWER =2.6 V IOUT =100 mA 61 0 m A VCONTROL =4.3 V, VPOWER =2.6 V IOUT =4 A 30 60 VCONTROL =4.3 V, VPOWER =2.3 V IOUT =4 A 33 70 VCONTROL =4.3 V, VPOWER =2.6 V IOUT =7 A 60 120 IQ Quiescent Current V CONTROL =4.3 V, VPOWER =2.6 V IOUT =0 A 51 0 m A IOUT Output Current Limit V CONTROL =4.3 V, VPOWER =2.6 V (Note 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =4.3 V Avg, VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 58.4 78.4 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =2.6 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =2.6 V, IOUT =1 A 0.95 1.15 VPOWER =2.6 V, IOUT =4 A 1 1.2 VPOWER =2.6 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =4.3 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =4.3 V, IOUT =4 A 0.2 0.4 VCONTROL =4.3 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS FOR LD1580xx25 (Tj= -40 °C to 125 °C, CP=330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =5 V, VPOWER =3.3 V Tj=25 °C, IOUT =0 mA 2.475 2.5 2.525 V VCONTROL = 4Vt o1 2V VPOWER =3.1 V to 5.5 V IOUT =0 to 7 A 2.450 2.5 2.550 ΔV O Line Regulation V CONTROL = 3 . 6 5Vt o1 2V VPOWER =3 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =5 V, VPOWER =3.3 V IOUT =0 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =5 V, VPOWER =3.3 V IOUT =100 mA 61 0 m A VCONTROL =5 V, VPOWER =3.3 V IOUT =4 A 30 60 VCONTROL =5 V, VPOWER =3 V IOUT =4 A 33 70 VCONTROL =5 V, VPOWER =3.3 V IOUT =7 A 60 120 IQ Quiescent Current V CONTROL =5 V, VPOWER =3.3 V IOUT =0 A 51 0 m A IOUT Output Current Limit V CONTROL =5 V, VPOWER =3.3 V (Note1) 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =5 V Avg, VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 55.5 75.5 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =3.3 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =3.3 V, IOUT =1 A 0.95 1.15 VPOWER =3.3 V, IOUT =4 A 1 1.2 VPOWER =3.3 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =5 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =5 V, IOUT =4 A 0.2 0.4 VCONTROL =5 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS FOR LD1580xx30 (Tj= -40 °C to 125 °C, CP=330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =5.5 V, VPOWER =3.8 V Tj=25 °C, IOUT =0 mA 2.970 3 3.030 V VCONTROL = 4 . 5Vt o1 2V VPOWER =3.6 V to 5.5 V IOUT =0 to 7 A 2.940 3 3.060 ΔV O Line Regulation V CONTROL = 4 . 1 5Vt o1 2V VPOWER =3.5 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =5.5 V, VPOWER =3.8 V IOUT =0 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =5.5 V, VPOWER =3.8 V IOUT =100 mA 61 0 m A VCONTROL =5.5 V, VPOWER =3.8 V IOUT =4 A 30 60 VCONTROL =5.5 V, VPOWER =3.5 V IOUT =4 A 33 70 VCONTROL =5.5 V, VPOWER =3.8 V IOUT =7 A 60 120 IQ Quiescent Current V CONTROL =5.5 V, VPOWER =3.8 V IOUT =0 A 51 0 m A IOUT Output Current Limit V CONTROL =5.5 V, VPOWER =3.8 V (Note 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =5.5 V Avg, VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 54 74 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =3.8 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =3.8 V, IOUT =1 A 0.95 1.15 VPOWER =3.8 V, IOUT =4 A 1 1.2 VPOWER =3.8 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =5.5 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =5.5 V, IOUT =4 A 0.2 0.4 VCONTROL =5.5 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS FOR LD1580xx33 (Tj= -40 °C to 125 °C, CP=330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =5.8 V, VPOWER =4.1 V Tj=25 °C, IOUT =0 mA 3.267 3.3 3.333 V VCONTROL = 4 . 8Vt o1 2V VPOWER =3.9 V to 5.5 V IOUT =0 to 7 A 3.234 3.3 3.366 ΔV O Line Regulation V CONTROL = 4 . 4 5Vt o1 2V VPOWER =3.8 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =5.8 V, VPOWER =4.1 V IOUT =0 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =5.8 V, VPOWER =4.1 V IOUT =100 mA 61 0 m A VCONTROL =5.8 V, VPOWER =4.1 V IOUT =4 A 30 60 VCONTROL =5.8 V, VPOWER =3.8 V IOUT =4 A 33 70 VCONTROL =5.8 V, VPOWER =4.1 V IOUT =7 A 60 120 IQ Quiescent Current V CONTROL =5.8 V, VPOWER =4.1 V IOUT =0 A 51 0 m A IOUT Output Current Limit V CONTROL =5.8 V, VPOWER =4.1 V (Note 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =5.8 V Avg, VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 53.1 73.1 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =4.1 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =4.1 V, IOUT =1 A 0.95 1.15 VPOWER =4.1 V, IOUT =4 A 1 1.2 VPOWER =4.1 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =5.8 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =5.8 V, IOUT =4 A 0.2 0.4 VCONTROL =5.8 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS FOR LD1580 (Tj= - 40 °C to 125 °C, CP=330 µF, CC =10 µF, C OUT =100 µF, unless otherwise specified) Note 1: Measured when the VOUT voltage drops below 100mV with respect to its nominal value. Note 2: Measured when the VOUT voltage drops below 2% with respect to its nominal value. Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage V CONTROL =2.75 V, VPOWER =2 V Tj=25 °C, IOUT =10 mA 1.237 1.250 1.263 V VCONTROL = 2 . 7Vt o1 2V VPOWER =2.05 V to 5.5 V IOUT =0.01 to 7 A 1.225 1.250 1.275 ΔV O Line Regulation V CONTROL = 2 . 5Vt o1 2V VPOWER =1.75 V to 5.5 V IOUT =10 mA 0.08 0.24 % ΔV O Load Regulation V CONTROL =2.75 V, VPOWER =2.1 V IOUT =0.01 to 7 A 0.08 0.4 % IC VCONTROL Pin Current V CONTROL =2.75 V, VPOWER =2.05 V IOUT =100 mA 61 0 m A VCONTROL =2.75 V, VPOWER =2.05 V IOUT =4 A 30 60 VCONTROL =2.75 V, VPOWER =1.75 V IOUT =4 A 33 70 VCONTROL =2.75 V, VPOWER =2.05 V IOUT =7 A 60 120 IADJ Adjust Pin Current V CONTROL =2.75 V, VPOWER =2.05 V IOUT =10 mA 50 120 mA IOUT Output Current Limit V CONTROL =2.75 V, VPOWER =2.05 V (Note 89 A SVR Supply Voltage Rejection V CONTROL =V POWER =3.75 V Avg VRIPPLE =1 VP-P IOUT =4 A, Tj=25 °C 61.5 81.5 dB VDC Minimun VCONTROL Voltage (VCONTROL -VO ) VPOWER =2.05 V, IOUT =100 mA (Note 2) 0.95 1.15 V VPOWER =2.05 V, IOUT =1 A 0.95 1.15 VPOWER =2.05 V, IOUT =4 A 1 1.2 VPOWER =2.05 V, IOUT =7 A 1.05 1.3 V DP Minimun VPOWER Voltage (VPOWER -VO ) VCONTROL =2.75 V, IOUT =1 A (Note 2) 0.05 0.15 V VCONTROL =2.75 V, IOUT =4 A 0.2 0.4 VCONTROL =2.75 V, IOUT =7 A 0.4 0.6 TSHDN Shutdown Temperature Threshold 170 °C THYST Thermal Shutdown Hysteresis 5° C

DIM. mm. inch A 4.8 0.189 C 1.37 0.054 D 2.4 2.8 0.094 0.110 D1 1.2 1.35 0.047 0.053 E 0.35 0.55 0.014 0.022 F 0.6 0.8 0.024 0.031 F1 0.9 0.035 H2 10.4 0.409 H3 10.05 10.4 0.396 0.409 L 16.97 0.668 L1 14.92 0.587 L2 21.54 0.848 L3 22.62 0.891 L5 2.6 3 0.102 0.118 L6 15.1 15.8 0.594 0.622 L7 6 6.6 0.236 0.260 M 2.8 0.110 M1 5.08 0.200 Dia1 3.65 3.85 0.144 0.152 HEPTAWATT (VERTICAL) MECHANICAL DATA P023A

DIM. mm. inch A 4.8 0.189 C 1.37 0.054 D 2.4 2.8 0.094 0.110 D1 1.2 1.35 0.047 0.053 E 0.35 0.55 0.014 0.022 F 0.8 1.05 0.031 0.041 F1 1 1.4 0.039 0.055 H2 10.4 0.409 H3 10.05 10.4 0.396 0.409 L 17.85 0.703 L1 15.75 0.620 L2 21.4 0.843 L3 22.5 0.886 L5 2.6 3 0.102 0.118 L6 15.1 15.8 0.594 0.622 L7 6 6.6 0.236 0.260 M 4.5 0.177 M1 4 0.157 Dia1 3.65 3.85 0.144 0.152 PENTAW ATT (VERTICAL) MECHANICAL DA TA P010E

DIM. mm. inch A 4.30 4.80 0.169 0.188 A2 0.03 0.23 0.001 0.009 C 1.17 1.37 0.046 0.053 D 2.40 2.80 0.094 0.110 D1 8.95 9.35 0.352 0.368 E 0.35 0.55 0.013 0.021 F 0.80 1.05 0.031 0.041 G 3.20 3.60 0.126 0.142 G1 6.60 7.00 0.260 0.275 H2 10.40 0.409 L 13.59 14.39 0.535 0.566 L2 1.27 1.40 0.050 0.055 L3 1.30 1.70 0.051 0.067 R 0.30 0.012 V2 0˚ 8˚ 0˚ 8˚ P2PAK MECHANICAL DATA P010L4A/B

DIM. mm. inch A 1.78 2.03 0.070 0.080 A2 0.03 0.13 0.001 0.005 C 0.25 0.010 C1 0.25 0.010 D 1.02 1.27 0.040 0.050 D1 7.87 8.13 0.310 0.320 F 0.63 0.79 0.025 0.031 G 1.69 0.067 G1 6.8 0.268 H1 5.59 0.220 H2 9.27 9.52 0.365 0.375 H3 8.89 9.14 0.350 0.360 L 10.41 10.67 0.410 0.420 L1 7.49 0.295 L2 8.89 9.14 0.350 0.360 M 0.79 1.04 0.031 0.041 N 0.25 0.010 V3 ˚ 6 ˚3 ˚ 6 ˚ SPAK-5L MECHANICAL DATA PO13F1/B

DIM. mm. inch A 1.78 2.03 0.070 0.080 A2 0.03 0.13 0.001 0.005 C 0.25 0.010 C1 0.25 0.010 D 1.02 1.27 0.040 0.050 D1 7.87 8.13 0.310 0.320 F 0.63 0.79 0.025 0.031 G 1.27 0.050 G1 7.62 0.3 H1 5.59 0.220 H2 9.27 9.52 0.365 0.375 H3 8.89 9.14 0.350 0.360 L 10.41 10.67 0.410 0.420 L1 7.49 0.295 L2 8.89 9.14 0.350 0.360 M 0.79 1.04 0.031 0.041 N 0.25 0.010 V3 ˚ 6 ˚3 ˚ 6 ˚ SPAK-7L MECHANICAL DATA PO13F2/A

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © The ST logo is a registered trademark of STMicroelectronics © 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. © http://www.st.com