LT1120CJ8

LT1120 Micropower Regulator with Comparator and Shutdown FEATURES s s s s s s s s s DESCRIPTIO 40µA Supply Current 125mA Output Current 2.5V Reference Voltage Reference Output Sources 2mA and Sinks 2mA Open Collector Comparator Sinks 10mA Logic Shutdown 0.2V Dropout Voltage Thermal Limiting Available in 8-Lead DIP and SO Packages The LT®1120 is a combination micropower positive regulator and free collector comparator on a single monolithic chip. With only 40µA supply current, the LT1120 can supply over 125mA of output current. Input voltage range is from 4.5V to 36V and dropout voltage is 0.6V at 125mA. Dropout voltage decreases with lower load currents. Also included on the chip is a class B output 2.5V reference that can either source or sink current. A shutdown pin allows logic shutdown of the output. The comparator can be used for system or battery monitoring. For example, the comparator can be used to warn of low system voltage. Frequency compensation of the comparator for amplifier applications can be obtained by adding external output capacitance. The 2.5V reference will source or sink current. This allows it to be used as a supply splitter or auxiliary output. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIO S s s s s s Battery Systems Battery-Backup System Portable Terminals Portable Instruments Memory Keep-Alive TYPICAL APPLICATIO Dropout Voltage and Supply Current 1.00 10 5V Regulator SUPPLY CURRENT (mA) VIN > 5.2V IQ = 40µA 5 VIN LT1120 10µF SHDN 3 SHUTDOWN FB GND 1 2 1M VOUT 4 0.001µF 1M 5V DROPOUT VOLTAGE (V) + + 0.10 25µF 1120 TA01 0.01 0.1 U 1 10 100 1 OUTPUT CURRENT (mA) 0.1 1000 1120 TA02 U U 1120fc 1 LT1120 ABSOLUTE AXI U RATI GS Input Voltage ........................................................... 36V NPN Collector Voltage ............................................. 36V Output Short-Circuit Duration .......................... Indefinite Power Dissipation ............................... Internally Limited PACKAGE/ORDER I FOR ATIO TOP VIEW GND 1 FB 2 SHDN 3 VOUT 4 8 7 6 5 –INPUT COMPOUT REF VIN ORDER PART NUMBER LT1120CN8 LT1120CS8 LT1120IN8 LT1120IS8 S8 PART MARKING 1120 1120I ORDER PART NUMBER LT1120CJ8 GND 1 FB 2 SHDN 3 S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP TJMAX = 110°C, θJA = 130°C/W (N) TJMAX = 110°C, θJA = 150°C/W (S) J8 PACKAGE 8-LEAD CERDIP TJMAX = 150°C, θJA = 100°C/W (J) OBSOLETE PACKAGES Consider the N8 and S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. The q denotes the specifications which apply over thefull operating temperature range, otherwise specifications are at TA = 25°C. Tj = 25°C. PARAMETER Reference Reference Voltage Line Regulation Load Regulation Output Source Current Output Sink Current Temperature Stability Regulator Supply Current VIN = 6V, IOUT ≤ 100µA VIN = 36V, IOUT ≤ 100µA VIN = 12V, IOUT = 125mA (VIN – VOUT) ≥ 1V, VIN ≥ 6V (VIN – VOUT) ≥ 1V, VIN ≥ 6V 6V ≤ VIN ≤ 36V IOUT = 100µA IOUT = 125mA 125 0.2 0.01 0.02 0.4 0.5 0.015 0.05 0.65 45 75 11 80 100 20 µA µA mA mA % %/V V V 1120fc ELECTRICAL CHARACTERISTICS CONDITIONS 4.5V ≤ VIN ≤ 36V 4.5V ≤ VIN ≤ 36V –2mA ≤ IREF ≤ 2mA, VIN = 12V VIN = 5V VIN = 5V 2 2 Output Current Load Regulation Line Regulation Dropout Voltage 2 U U W WW U W (Note 1) Operating Temperature Range LT1120C ................................................ 0°C to 100°C LT1120I ................................................ – 40 to 100°C Storage Temperature Range ................. – 65°C to 150°C TOP VIEW –INPUT 8 7 COMPOUT 6 REF 5 VIN ORDER PART NUMBER LT1120CH 4 VOUT H PACKAGE 8-LEAD TO-5 METAL CAN TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W MIN 2.46 TYP 2.50 0.01 0.3 4 4 1 MAX 2.54 0.015 0.6 UNITS V %/V % mA mA % LT1120 The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Tj = 25°C. PARAMETER Feedback Sense Voltage Shutdown Pin Voltage VOUT ≤ 0.5V Shutdown Pin Current Feedback Bias Current Minimum Load Current Short-Circuit Current Comparator Offset Voltage Bias Current Gain Power Supply Rejection Output Sink Current Saturation Voltage Input Voltage Range Response Time Leakage Current VIN = 36V VIN = 36V (Note 2) ∆VOUT = 29V, RL = 20k 4.5V ≤ VS ≤ 36V VIN = 4.5V IOUT = 1mA 0 5 2 2000 80 10 3 15 10000 96 18 0.4 0.6 VIN – 1 7 40 mV nA V/V dB mA V V µs µA VIN = 36V VIN = 36V VIN = 1.4V CONDITIONS VIN = 12V Normal Shutdown 2.2 1.4 25 15 1 300 40 5 400 MIN 2.44 TYP 2.5 MAX 2.56 0.4 UNITS V V V µA nA µA mA ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER Reference Reference Voltage Line Regulation Load Regulation Output Source Current Output Sink Current Regulator Supply Current VIN = 6V, IOUT ≤ 100µA VIN = 36V, IOUT ≤ 100µA VIN = 12V, IOUT = 125mA (VIN – VOUT) ≥ 1V, VIN ≥ 6V (VIN – VOUT) ≥ 1V, VIN ≥ 6V 6V ≤ VIN ≤ 36V IOUT = 100µA IOUT = 125mA VIN = 12V VIN = 36V VIN = 36V q q q q q q q q q q q q CONDITIONS 4.5V ≤ VIN ≤ 36V 4.5V ≤ VIN ≤ 36V – 2mA ≤ IREF ≤ 2mA, VIN = 12V VIN = 5V VIN = 5V q q q q q MIN 2.40 TYP 2.50 0.01 0.4 MAX 2.55 0.02 0.8 UNITS V %/V % mA mA 2 2 65 85 11 125 1 0.02 0.06 0.85 2.38 2.5 2.57 50 50 300 400 95 100 20 µA µA mA mA % %/V V V V nA µA mA Output Current Load Regulation Line Regulation Dropout Voltage Feedback Sense Voltage Feedback Bias Current Minimum Load Current Short-Circuit Current 1120fc 3 LT1120 ELECTRICAL CHARACTERISTICS PARAMETER Comparator Offset Voltage Bias Current Gain Output Sink Current Leakage Current VIN = 36V (Note 2) ∆VOUT = 29V, RL = 20k VIN = 4.5V (Note 3) VIN = 36V q q q q q The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. CONDITIONS MIN TYP MAX 10 15 1000 5 10 8 60 UNITS mV nA V/V mA µA Note 1: Absolute Maximum Ratings are those values beyond which the life a device may be impaired. Note 2: TA > 85°C, I bias maximum is 100nA. Note 3: For TA ≤ – 40°C output current sink drops to 2.5mA. TYPICAL PERFOR A CE CHARACTERISTICS Regulator Load Regulation 0.3 TJ = – 55°C OUTPUT VOLTAGE CHANGE (%) SUPPLY CURRENT (mA) TJ = 25°C 10 SHORT-CIRCUIT CURRENT (mA) 0.2 0.1 0 TJ = 125°C –0.1 –0.2 PRELOAD = 100µA –0.3 0.1 10 100 1 OUTPUT CURRENT (mA) 1000 1120 G01 Dropout Voltage REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) 1 ∆VOUT = 100mV MINIMUM LOAD CURRENT (µA) RIPPLE REJECTION (dB) 0.1 0.01 0.1 10 100 1000 1 REGULATOR OUTPUT CURRENT (mA) 1120 G04 4 UW Supply Current 100 TJ = – 55°C TO 125°C 300 250 200 150 100 50 350 Regulator Short-Circuit Current 1 0.1 CURRENT LIMIT TIED TO GROUND 0.01 0.1 10 100 1000 1 REGULATOR OUTPUT CURRENT (mA) 1120 G02 0 –50 –10 30 70 110 TEMPERATURE (°C) 150 1120 G03 Regulator Minimum Load Current 100 70 65 60 55 Regulator Ripple Rejection IOUT = 100mA IOUT = 10mA 50 IOUT = 1mA 45 40 35 VIN = 10VDC, 1VP–P VOUT = 5V COUT = 10µF 10 100 1k 10k RIPPLE FREQUENCY (Hz) 100k 1120 G06 10 1 70 80 90 100 110 120 130 140 150 TEMPERATURE (°C) 1120 G05 30 1120fc LT1120 TYPICAL PERFOR A CE CHARACTERISTICS Supply Current 10 IOUT = 100mA 10 TJ = – 55°C TO 125°C IOUT = 100mA SUPPLY CURRENT (mA) 1 SUPPLY CURRENT (mA) IOUT = 10mA 0.1 IOUT = 1mA VOUT = 5V TJ = –55°C TO 125°C 0.01 1 5 10 15 20 25 REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) 1120 G07 Reference Regulation 4 REFERENCE VOLTAGE CHANGE (mV) 3 FEEDBACK CURRENT (nA) 2 1 0 –1 –2 –3 –4 –1.5 –1.0 –0.5 0 0.5 1.0 REFERENCE OUTPUT CURRENT (mA) Regulator Thermal Regulation OUTPUT VOLTAGE CHANGE (%) 0.1 VIN = 15V VOUT = 5V 0 OUTPUT VOLTAGE (V) –0.1 OUTPUT CURRENT (mA) 50 0 0 20 40 60 80 100 120 140 160 180 TIME (ms) 1120 G12 UW Supply Current at Dropout 1 IOUT = 10mA 0.1 IOUT = 1mA 0.01 1 0.1 0.2 0.3 0.4 0.5 0.6 REGULATOR INPUT-OUTPUT DIFFERENTIAL (V) 1120 G08 Feedback Pin Current 40 35 30 25 20 15 10 5 0 0.1 TJ = 125°C TJ = 25°C TJ = – 55°C 1.5 1 10 100 1000 REGULATOR OUTPUT CURRENT (mA) 1120 G11 1120 G09 LT1120 Turn-On Characteristic 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 0 0 1 2 RL = 50Ω 3 4 5 6 INPUT VOLTAGE (V) 7 8 VOUT = 5V NO LOAD RL = 500Ω 1120 G13 1120fc 5 LT1120 PI FU CTIO S GND (Pin 1): Ground. FB (Pin 2): Feedback. This is the feedback point of the regulator. When operating, it is nominally at 2.5V. Optimum source resistance is 200k to 500k. The feedback pin should not be driven below ground or more positive than 5V. SHDN (Pin 3): Shutdown. A logic 1 shuts off the main regulator. Caution: noise or leakage into the shutdown pin can affect output voltage. VOUT (Pin 4): Regulator Output. Main output, requires a 10µF output capacitor. Can be shorted to VIN or ground without damaging the device. VIN (Pin 5): Input Supply. Bypass with a 10µF capacitor. Must always be more positive than ground. REF (Pin 6): Reference. 2.5V can source or sink current. May be shorted to ground or up to 5V. Voltages in excess of 5V can damage the device. COMPOUT (Pin 7): Comparator Output. Open Collector NPN Output. May be connected to any voltage from ground to 36V more positive than ground (operates above VIN). Short-circuit protected. – INPUT (Pin 8): Comparator Input. Inverting comparator input. BLOCK DIAGRA VIN 5 50k COMPOUT 7 APPLICATIO S I FOR ATIO The LT1120 is especially suited for micropower system applications. For example, the comparator section of the LT1120 may be used as a battery checker to provide an indication of low battery. Another type of system application for the LT1120 would be to generate the equivalent of split supplies off of a single power input. The regulator section provides regulated output voltage and the reference, which can both source and sink current, is then an artificial system ground providing a split supply for the system. 6 U W W U U U U U REF 6 + – REF 2.5V – + 4 VOUT 2 FB 60k 3 SHDN 1 GND 1120 BD 8 –INPUT For many applications the comparator can be frequency compensated to operate as an amplifier. Compensation values for various gains are given in the data sheet. The comparator gain is purposely low to make it easier to frequency compensate as an amplifier. The NPN output is capable of sinking 10mA and can drive loads connected to voltages in excess of the positive power supply. This is useful for driving switches or linear regulators off of a higher input voltage. 1120fc LT1120 APPLICATIO S I FOR ATIO Reference Internal to the LT1120 is a 2.5V trimmed class B output reference. The reference was designed to be able to source or sink current so it could be used in supply splitting applications as well as a general purpose reference for external circuitry. The design of the reference allows it to source typically 4mA or 5mA and sink 2mA. The available source and sink current decreases as temperature increases. It is sometimes desirable to decrease the AC output impedance by placing an output capacitor on them. The reference in the LT1120 becomes unstable with large capacitive loads placed directly on it. When using an output capacitor, about 20Ω should be used to isolate the capacitor from the reference pin. This 20Ω resistor can be placed directly in series with the capacitor or alternatively the reference line can have 20Ω placed in series with it and then a capacitor to ground. This is shown in Figure 1. Other than placing large capacitive loads on the reference, no other precautions are necessary and the reference is stable with nominal stray capacitances. REF 6 20Ω OUTPUT OR REF 6 20Ω + 10µF + OUTPUT 10µF 1120 F01 Figure 1. Bypassing Reference U Overload Protection The main regulator in the LT1120 is current limited at approximately 250mA. The current limit is stable with both input voltage and temperature. Like most other IC regulators, a minimum load is required on the output of the LT1120 to maintain regulation. For most standard regulators this is normally specified at 5mA. Of course, for a micropower regulator this would be a tremendously large current. The output must be large enough to absorb all the leakage current of the pass transistor at the maximum operating temperature. It also effects the transient response; low output currents have long recovery times from load transients. At high operating temperatures the minimum load current increases and having too low of a load current may cause the output to go unregulated. Devices are tested for minimum load current at high temperature. The output voltage setting resistors to the feedback terminal can usually be used to provide the minimum load current. Frequency Compensation The LT1120 is frequency compensated by a dominant pole on the output. An output capacitor of 10µF is usually large enough to provide good stability. Increasing the output capacitor above 10µF further improves stability. In order to ensure stability, a feedback capacitor is needed between the output pin and the feedback pin. This is because stray capacitance can form another pole with the large value of feedback resistors used with the LT1120. Also, a feedback capacitor minimizes noise pickup and improves ripple rejection. With the large dynamic operating range of the output current, 10000:1, frequency response changes widely. Low AC impedance capacitors are needed to insure stability. While solid tantalum are best, aluminum electrolytics can be used but larger capacitor values may be needed. 1120fc W U U 7 LT1120 TYPICAL APPLICATIO S Regulator with Output Voltage Monitor 5 5V 500k LOGIC LOGIC OUTPUT 7 LT1120 VIN VOUT 4 0.001µF –INPUT 8 VOUT 5V 98k VOUT LOGIC OUTPUT GOES LOW WHEN VOUT DROPS BY 100mV Compensating the Comparator as an Op Amp 50µA 6 + – 1M 7 AT Av = 100, SLEW RATE = +0.05V/µs –6V/µs 8 R2 C2 R1 C1 1120 TA04 Av 1 10 100 R1 33Ω 100Ω 10k C1 0.1µF 0.047µF 0.002µF C2 0.001µF — — 8 U – + FB REF 6 GND 1 2 + 2k 10µF PIN 7 LOGIC OUTPUT 100k 1120 TA03 1A Low Dropout Regulator VIN 2.2k MJE2955 5 VIN LT1120 FB GND 1 2 150Ω* 100k VOUT 4 * 10k* 100k 0.001µF VOUT 5V + 220µF† R2 — 100k 10k * FOR CURRENT LIMIT ≈ 1.5A † MUST HAVE LOW ESR. SEVERAL 100µF CAPACITORS CAN BE PARALLELED. 1120 TA05 1120fc LT1120 TYPICAL APPLICATIO S 5V Regulator VIN > 5.2V IQ = 40µA 5 VIN LT1120 10µF GND 1 1M FB 2 VOUT 4 0.001µF 1M 5V + BATTERY INPUT 5 VIN LT1120 INTERNAL PARASITIC DIODES OF LT1120 VIN VOUT VIN > 5.2V IQ = 40µA * TRANSISTOR USED BECAUSE OF LOW LEAKAGE CHARACTERISTICS. TO TURN OFF THE OUTPUT OF THE LT1120 FORCE FB (PIN 2) > 2.5V. U Regulator with Improved Transient Response VIN > 5.2V 5 VIN LT1120 VOUT 4 0.001µF FB GND 1 2 0.001µF 22k 1M 1M 5V + 25µF + 25µF 1120 TA06 1120 TA07 Battery-Backup Regulator VOUT 5V VOUT 4 0.001µF FB GND 1 2 50k 4 VOUT LT1120 2 FB GND 1 VIN 5 MAIN POWER INPUT + 1M 10µF 1M 1120 TA08 5V Regulator with Feedback Shutdown 5 VIN LT1120 FB GND 1 1M 2 VOUT 4 + 0.001µF 1M 5V OUT 10µF 2N3904* NC LOGIC INPUT 1120 TA09 1120fc 9 W W LT1120 SCHE ATIC DIAGRA 10 REF 6 FB 2 5 VIN R35 42k Q19 C6 100pF Q38 Q39 Q51 Q55 R23 30k R24 390k Q52 C5 100pF Q42 Q56 R22 30k Q54 R8 40k R19 40k R33 47k 138.3k Q25 Q58 4 VOUT Q20 Q28 Q24 Q29 Q40 Q43 125k Q41 125k C2 25pF Q30 R17 100Ω R7 6.8k Q33 Q35 Q60 Q22 Q63 Q32 Q34 R10 75k R8 100k Q36 Q49 Q62 R16 6k Q45 Q37 Q46 Q47 Q48 R30 2k R31 10Ω R32 2k C3 10pF Q21 R11 15k Q31 Q44 Q27 Q26 Q23 C1 10pF Q61 100pF R27 15k R14 15k R15 80k R18 15k Q59 R34 60k 3 SHDN R26 15k R28 2k R29 5Ω 100pF R6 3k 15k 281k R38 20k 8 –INPUT 1120 Schem R4 42k Q13 Q14 Q2 Q15 Q16 COMPOUT 7 Q10 Q6 Q5 Q9 Q11 Q8 Q17 Q18 Q7 Q12 R1 25Ω R36 60k R2 50k R37 110.8k R3 50k 1 GND 1120fc LT1120 PACKAGE DESCRIPTIO .335 – .370 (8.509 – 9.398) DIA .305 – .335 (7.747 – 8.509) .040 (1.016) MAX .050 (1.270) MAX GAUGE PLANE .165 – .185 (4.191 – 4.699) REFERENCE PLANE .500 – .750 (12.700 – 19.050) .110 – .160 (2.794 – 4.064) INSULATING STANDOFF 45°TYP .028 – .034 (0.711 – 0.864) SEATING PLANE .010 – .045* (0.254 – 1.143) .016 – .021** (0.406 – 0.533) *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) .300 BSC (7.62 BSC) CORNER LEADS OPTION (4 PLCS) .008 – .018 (0.203 – 0.457) 0° – 15° .045 – .068 (1.143 – 1.650) FULL LEAD OPTION NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) .065 (1.651) TYP .120 (3.048) .020 MIN (0.508) MIN .018 ± .003 (0.457 ± 0.076) ( +.035 .325 –.015 +0.889 8.255 –0.381 ) INCHES MILLIMETERS NOTE: 1. DIMENSIONS ARE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U H Package 8-Lead TO-5 Metal Can (.230 Inch PCD) (Reference LTC DWG # 05-08-1321) .027 – .045 (0.686 – 1.143) PIN 1 .230 (5.842) TYP H8 (TO-5) 0.230 PCD 0801 J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .200 (5.080) MAX .015 – .060 (0.381 – 1.524) .005 (0.127) MIN .405 (10.287) MAX 8 7 6 5 .023 – .045 (0.584 – 1.143) HALF LEAD OPTION .025 (0.635) RAD TYP 1 2 3 .220 – .310 (5.588 – 7.874) 4 J8 0801 .045 – .065 (1.143 – 1.651) .014 – .026 (0.360 – 0.660) .100 (2.54) BSC .125 3.175 MIN OBSOLETE PACKAGES N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .045 – .065 (1.143 – 1.651) .130 ± .005 (3.302 ± 0.127) .400* (10.160) MAX 8 7 6 5 .255 ± .015* (6.477 ± 0.381) 1 2 3 4 N8 1002 .100 (2.54) BSC *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) 1120fc 11 LT1120 TYPICAL APPLICATIO * SETS CURRENT LIMIT BUT INCREASES DROPOUT VOLTAGE BY 0.5V † MUST HAVE LOW ESR. SEVERAL 100µF CAPACITORS CAN BE PARALLELED PACKAGE DESCRIPTIO .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .053 – .069 (1.346 – 1.752) 0°– 8° TYP .016 – .050 (0.406 – 1.270) NOTE: 1. DIMENSIONS IN INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) .014 – .019 (0.355 – 0.483) TYP RELATED PARTS PART NUMBER LT1121 LT1521 LT1761 DESCRIPTION 150mA Micropower Low Dropout Regulator 300mA Mircopower Low Dropout Regulator 100mA Micropower Low Noise, Low Dropout Regulator COMMENTS 0.4V Dropout Voltage, Includes Shutdown, SOT-223, S8 Packages Lowest IQ Low Dropout Regulator, SOT-223, S8, MS8 Packages SOT-23, 20µVRMS Noise, 20µA IQ, ThinSOT Package 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q U U Current Limited 1A Regulator 0.5Ω* VIN 2.2k MJE2955 5 VIN VOUT 4 0.22µF FB GND 1 270Ω 100k 2 100k VOUT 5V AT 1A 2N3906* LT1120 + 220µF† 1120 TA10 S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .189 – .197 (4.801 – 5.004) NOTE 3 8 .004 – .010 (0.101 – 0.254) .228 – .244 (5.791 – 6.197) .150 – .157 (3.810 – 3.988) NOTE 3 .245 MIN .160 ±.005 7 6 5 .050 BSC .045 ±.005 .050 (1.270) BSC SO8 0303 1 2 3 4 .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT 1120fc LT/TP 0403 1K REV C • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1989