SA1117 1A LDO VOLTAGE REGULATOR DESCRIPTION The SA1117 is a positive low voltage dropout regulator, voltage dropout is only 1.2V at 1A. SA1117 has two versions: the fixed version and the adjustable version. VOUT has a tolerance of less than 1% for fixed versions 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and adjustable version or 2% output accuracy for fixed version 1.2V. The SA1117 integrates overheating protection and current limit circuits. It is an suitable for all electronic products. FEATURES * 1% accuracy for fixed output VOUT while the voltage is 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and the adjustable output VOUT * 2% output accuracy for fixed version 1.2V * Low Dropout Voltage: 1.2V at 1A output current * Current Limiting * Thermal Shutdown * Temperature Range: -40°C to 125°C APPLICATIONS * Laptop, Palmtop, and Notebook Computers * Battery Charger * SCSI-|| Active Terminator * Cellular Phone * Cordless Telephones * Battery Powered Systems * Portable Devices * SMPS Post-Regulator ORDERING INFORMATION (Temperature range: -40°C ~125°C) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 1 of 13 SA1117 Part No. Package Marking Material Packing Type SA1117H-ADJTR SA1117H-ADJ Pb free Tape & Reel SA1117H-1.2TR SA1117H-1.2 Pb free Tape & Reel SA1117H-1.5 Pb free Tape & Reel SA1117H-1.5TR SA1117H-1.8TR SOT-223-3L SA1117H-1.8 Pb free Tape & Reel SA1117H-2.5TR SA1117H-2.5 Pb free Tape & Reel SA1117H-3.3TR SA1117H-3.3 Pb free Tape & Reel SA1117H-5.0TR SA1117H-5.0 Pb free Tape & Reel SA1117R-ADJ TR SAJR Pb free Tape & Reel SA1117R-1.2TR S12R Pb free Tape & Reel SA1117R-1.5TR S15R Pb free Tape & Reel S18R Pb free Tape & Reel SA1117R-2.5TR S25R Pb free Tape & Reel SA1117R-3.3TR S33R Pb free Tape & Reel SA1117R-5.0TR S50R Pb free Tape & Reel SA1117T-ADJ SA1117T-ADJ Pb free Tube SA1117T-1.2 SA1117T-1.2 Pb free Tube SA1117T-1.5 SA1117T-1.5 Pb free Tube SA1117T-1.8 Pb free Tube SA1117T-2.5 Pb free Tube SA1117R-1.8TR SA1117T-1.8 SOT-89-3L TO-220-3L SA1117T-2.5 SA1117T-3.3 SA1117T-3.3 Pb free Tube SA1117T-5.0 SA1117T-5.0 Pb free Tube SA1117D-ADJ SA1117D-ADJ Pb free Tube SA1117D-ADJTR SA1117D-ADJ Pb free Tape & Reel SA1117D-1.2 SA1117D-1.2 Pb free Tube SA1117D-1.2TR SA1117D-1.2 Pb free Tape & Reel SA1117D-1.5 SA1117D-1.5 Pb free Tube SA1117D-1.5TR SA1117D-1.5 Pb free Tape & Reel SA1117D-1.8 Pb free Tube SA1117D-1.8 Pb free Tape & Reel SA1117D-2.5 SA1117D-2.5 Pb free Tube SA1117D-2.5TR SA1117D-2.5 Pb free Tape & Reel SA1117D-3.3 SA1117D-3.3 Pb free Tube SA1117D-3.3TR SA1117D-3.3 Pb free Tape & Reel SA1117D-5.0 SA1117D-5.0 Pb free Tube SA1117D-5.0TR SA1117D-5.0 Pb free Tape & Reel SA1117S-ADJ SA1117S-ADJ Pb free Tube SA1117S-ADJTR SA1117S-ADJ Pb free Tape & Reel SA1117S-1.2 Pb free Tube SA1117S-1.2 Pb free Tape & Reel SA1117S-1.5 SA1117S-1.5 Pb free Tube SA1117S-1.5TR SA1117S-1.5 Pb free Tape & Reel SA1117D-1.8 SA1117D-1.8TR SA1117S-1.2 SA1117S-1.2TR TO-252-2L TO-263-3L HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 2 of 13 SA1117 Part No. Package Marking Material Packing Type SA1117S-1.8 SA1117S-1.8 Pb free Tube SA1117S-1.8TR SA1117S-1.8 Pb free Tape & Reel SA1117S-2.5 SA1117S-2.5 Pb free Tube SA1117S-2.5 Pb free Tape & Reel SA1117S-3.3 Pb free Tube SA1117S-3.3TR SA1117S-3.3 Pb free Tape & Reel SA1117S-5.0 SA1117S-5.0 Pb free Tube SA1117S-5.0TR SA1117S-5.0 Pb free Tape & Reel SA1117H-ADJGTR 1117H-ADJG Halogen free Tape & Reel SA1117H-1.2GTR 1117H-1.2G Halogen free Tape & Reel 1117H-1.5G Halogen free Tape & Reel SA1117S-2.5TR SA1117S-3.3 TO-263-3L SA1117H-1.5GTR SA1117H-1.8GTR SOT-223-3L 1117H-1.8G Halogen free Tape & Reel SA1117H-2.5GTR 1117H-2.5G Halogen free Tape & Reel SA1117H-3.3GTR 1117H-3.3G Halogen free Tape & Reel SA1117H-5.0GTR 1117H-5.0G Halogen free Tape & Reel SA1117R-ADJGTR RAJG Halogen free Tape & Reel SA1117R-1.2GTR R12G Halogen free Tape & Reel SA1117R-1.5GTR R15G Halogen free Tape & Reel R18G Halogen free Tape & Reel SA1117R-2.5GTR R25G Halogen free Tape & Reel SA1117R-3.3GTR R33G Halogen free Tape & Reel SA1117R-5.0GTR R50G Halogen free Tape & Reel SA1117T-ADJG 1117T-ADJG Halogen free Tube SA1117T-1.2G 1117T-1.2G Halogen free Tube SA1117T-1.5G 1117T-1.5G Halogen free Tube 1117T-1.8G Halogen free Tube 1117T-2.5G Halogen free Tube SA1117R-1.8GTR SA1117T-1.8G SOT-89-3L TO-220-3L SA1117T-2.5G SA1117T-3.3G 1117T-3.3G Halogen free Tube SA1117T-5.0G 1117T-5.0G Halogen free Tube SA1117D-ADJG 1117D-ADJG Halogen free Tube SA1117D-ADJGTR 1117D-ADJG Halogen free Tape & Reel SA1117D-1.2G 1117D-1.2G Halogen free Tube SA1117D-1.2GTR 1117D-1.2G Halogen free Tape & Reel 1117D-1.5G Halogen free Tube 1117D-1.5G Halogen free Tape & Reel SA1117D-1.8G 1117D-1.8G Halogen free Tube SA1117D-1.8GTR 1117D-1.8G Halogen free Tape & Reel SA1117D-2.5G 1117D-2.5G Halogen free Tube SA1117D-2.5GTR 1117D-2.5G Halogen free Tape & Reel SA1117D-1.5G SA1117D-1.5GTR TO-252-2L HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 3 of 13 SA1117 Part No. Package Marking SA1117D-3.3G Material Packing Type 1117D-3.3G Halogen free Tube 1117D-3.3G Halogen free Tape & Reel 1117D-5.0G Halogen free Tube SA1117D-5.0GTR 1117D-5.0G Halogen free Tape & Reel SA1117S-ADJG 1117S-ADJG Halogen free Tube SA1117S-ADJGTR 1117S-ADJG Halogen free Tape & Reel SA1117S-1.2G 1117S-1.2G Halogen free Tube SA1117S-1.2GTR 1117S-1.2G Halogen free Tape & Reel SA1117S-1.5G 1117S-1.5G Halogen free Tube SA1117S-1.5GTR 1117S-1.5G Halogen free Tape & Reel 1117S-1.8G Halogen free Tube SA1117D-3.3GTR TO-252-2L SA1117D-5.0G SA1117S-1.8G TO-263-3L SA1117S-1.8GTR 1117S-1.8G Halogen free Tape & Reel SA1117S-2.5G 1117S-2.5G Halogen free Tube SA1117S-2.5GTR 1117S-2.5G Halogen free Tape & Reel SA1117S-3.3G 1117S-3.3G Halogen free Tube SA1117S-3.3GTR 1117S-3.3G Halogen free Tape & Reel SA1117S-5.0G 1117S-5.0G Halogen free Tube SA1117S-5.0GTR 1117S-5.0G Halogen free Tape & Reel BLOCK DIAGRAM 3 VIN TSD Current Limit VOUT BandGap Fixed: F1 and F2 connect, disconnect A F1 F2 Adj: A connect, F1 and F2 disconnect A HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn 2 1 ADJ/GND REV:1.3 2009.07.22 Page 4 of 13 SA1117 ABOSOLUTE MAXIMUM RATINGS Characteristics Input Supply Voltage Lead Temperature (Soldering, 5 seconds) Operating Junction Temperature Range Storage Temperature Range Power Dissipation ESD Tolerance (Minimum) Symbol Ratings Unit VIN 20 V TLead 260 °C TJ 150 °C TSTG -65 ~ +150 °C PD Internally Limited (Note1) mW ESD 2000 V Note1: The maximum allowable power dissipation is a function of maximum operating junction temperature TJ (max), the junction to ambient thermal resistance θJA, and the ambient temperature Tamb. The maximum allowable power dissipation at any ambient temperature is given: PD (max) = (TJ (max) - Tamb)/θJA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. The junction to ambient thermal resistance θJA of different packages may be different, and the he value of θJA depends on mounting technique. RECOMMENDED OPERATING CONDITIONS Characteristics Symbol Ratings Unit Input Voltage VIN 15 V Operating Junction Temperature Range TJ -40 ~ +125 °C ELECTRICAL CHARACTERISTICS (Tamb=25°C, unless otherwise specified. Limits appearing in Boldface type apply over the entire junction temperature range for operation, -40°C to 125°C. ) Characteristics Symbol Conditions Min. Typ. Max. Unit 1.238 1.250 1.262 V 10mA≤IOUT≤1A, 1.4V≤VIN-VOUT≤10V 1.225 1.250 1.270 SA1117-ADJ, Reference Voltage VREF IOUT=10mA, VIN-VOUT=2V, TJ=25°C SA1117-1.2, IOUT=10mΑ, VIN=3.2V ,TJ=25°C 10mA≤IOUT≤1A, 3.0V≤VIN≤10V 1.176 1.2 1.224 1.152 1.2 1.248 1.485 1.500 1.515 1.470 1.500 1.530 IOUT=10mA, VIN=3.8V, TJ=25°C , 1.782 1.800 1.818 0≤IOUT≤1A, 3.2V≤VIN≤10V 1.764 1.800 1.836 IOUT=10mA, VIN=4.5V,TJ=25°C , 2.475 2.500 2.525 0≤IOUT≤1A, 3.9V≤VIN ≤10V 2.450 2.500 2.550 IOUT=10mA, VIN=5V,TJ=25°C , 3.267 3.300 3.333 0≤IOUT≤1A, 4.75V≤VIN≤10V 3.235 3.300 3.365 V SA1117-1.5, IOUT=10mΑ, VIN=3.5V ,TJ=25°C 10mA≤IOUT≤1A, 3.0V≤VIN≤10V V SA1117-1.8, Output Voltage VOUT V SA1117-2.5, V SA1117-3.3, HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 V 2009.07.22 Page 5 of 13 SA1117 Characteristics Symbol Conditions Min. Typ. Max. Unit IOUT=10mA, VIN=7V, TJ=25°C , 4.950 5.000 5.05 V 0≤ IOUT≤1A, 6.5V≤VIN≤12V 4.900 5.000 5.10 SA1117-5.0, Output Voltage Output Voltage Temperature Stability VOUT Line Regulation Rline Load Regulation Rload Dropout Voltage Quiescent Current Ripple Rejection Adjust pin Current 0.3 TSOUT Vdrop Iq PSRR VINMIN ≤VIN≤ 12V,VOUT=Fixed/Adj, 3 7 mV 6 12 mV IOUT=100mA 1.00 1.20 IOUT=500mA 1.05 1.25 IOUT=1A 1.10 1.30 5 10 IOUT=10mA 10mA≤IOUT≤ 1A,VOUT=Fixed/Adj 4.25V≤VIN≤ 6.5V fRIPPLE=120Hz, (VIN-VOUT)=3V, VRIPPLE=1VPP 0≤ IOUT≤1A,1.4V ≤VIN-VOUT≤10V Thermal shutdown TSD Current limitting Ilimit 1.2 Long Term Stability Tamb=125°C, 1000Hrs RMS Output Noise % of VOUT, 10Hz≤f≤10kHz (No Heat-sink) θJA 120 0.2 5 1.4 V mA dB 60 µA µA °C 1.5 A 0.5 % 0. 3 % 0.003 % SOT-223-3L 120 TO-252-2L 100 TO-263-3L 60 SOT-89-3L 165 TO-220-3L 60 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn 75 150 Temperature Stability Thermal Resistance 60 Iadj Adjust pin Current Change % REV:1.3 °C/W 2009.07.22 Page 6 of 13 SA1117 PIN CONFIGURATION PIN DESCRIPTION Pin No. Pin name I/O Functions 1 GND/ADJ --/O 2 VOUT O Output voltage 3 VIN I Input supply voltage Ground/ADJ HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 7 of 13 SA1117 FUNCTION DESCRIPTION The SA1117 is a LDO regulator, its pass transistor is made up of a single NPN transistor being driven by a PNP. The dropout voltage is defined as: VDROP = VBE+ VSAT. The SA1117 has two versions: the fixed output version and the adjustable output version. Output voltages can be 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V.On-chip thermal shut-down circuit provides protection against overload and overheating that would create excessive junction temperature. The adjustable output version requires a 22 μF or bigger tantalum capacitor at output for SA1117 stability. The capacitor for fixed output version can be smaller and should be determined base on actual application. Generally, the stability of linear regulator stability decreases with output currents increase. TYPICAL APPLICATION CIRCUIT Figure 1. Typical Fixed Output Voltage Figure 2. Typical Adjustable Output Voltage Note: The above circuit and parameters are reference only, please set the parameters of the real application circuit based on the real test. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 8 of 13 SA1117 TYPICAL CHARACTERISTICS CURVES Adjust Pin Current Adjust pin current (mA) Output voltage change(%) Temperature Stability VOUT=5 V Line Transient Response Load current (A) Output Voltage deviation (mV) Input voltage deviation(V) Output voltage deviation(V) VOUT=5 V Load Transient Response Ripple Rejection VS Current HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 9 of 13 SA1117 PACKAGE OUTLINE SOT-223-3L Unit: mm SOT-89-3L Unit: mm HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 10 of 13 SA1117 PACKAGE OUTLINE TO-220-3L Unit: mm TO-263-3L HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn Unit: mm REV:1.3 2009.07.22 Page 11 of 13 SA1117 PACKAGE OUTLINE TO-252-2L Unit: mm 6.50±0.25 5.30±0.20 0.80±0.10 2.30±0.10 0.5±0.1 0.0～0.127 2.30 TYP 0.60±0.10 0.5±0.1 4.60±0.10 Disclaimer: • Silan reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! • All semiconductor products malfunction or fail with some probability under special conditions. When using Silan products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such Silan products could cause loss of body injury or damage to property. • Silan will supply the best possible product for customers! HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http:// www.silan.com.cn REV:1.3 2009.07.22 Page 12 of 13