Voltage Regulators AN78Lxx/AN78LxxM Series 3-pin positive output voltage regulator (100 mA type) ■ Overview AN78Lxx series The AN78Lxx series and the AN78LxxM series are 3pin fixed positive output type monolithic voltage regulator. A stabilized fixed output voltage is obtained from an unstable DC input voltage without using any external parts. 12 types of fixed output voltage are available; 4V, 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V and 24V. They can be used widely as power circuits with a current capacity of up to 100mA. Unit: mm 5.1±0.2 4.0±0.2 (1.0) 5.0±0.2 (1.0) 2.3±0.2 13.5±0.5 0.6±0.15 0.43+0.1 –0.05 0.43+0.1 –0.05 ■ Features 2.54 • No external components • Output voltage: 4V, 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V • Built-in overcurrent limit circuit • Built-in thermal overload protection circuit 1: Input 2: Output 3: Common 2 3 1 SSIP003-P-0000 AN78LxxM series Unit: mm 1.6 max. 4.6 max. 2.6 max. 1.5 1.5 0.8 min. 0.58 max. 0.48 max. 4.25 max. 2.6 typ. 1.8 max. 0.44 max. 3.0 3 2 1 1: Output 2: Common 3: Input HSIP003-P-0000B ■ Block Diagram (AN78Lxx series) 1 Pass Tr Input (3) Note) The packages (SSIP003-P-0000 and HSIP003P-0000B) of this product will be changed to lead-free type (SSIP003-P-0000S and HSIP003-P-0000Q). See the new package dimensions section later of this datasheet. Q1 Current Source Current Limiter RSC 2 Starter + Voltage Reference R2 Error Amp. − Output (1) Thermal Protection R1 3 Common (2) Note) The number in ( ) shows the pin number for the AN78LxxM series. Publication date: Jaunuary 2002 SFF00005CEB 1 AN78Lxx/AN78LxxM Series ■ Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Input voltage VI Power dissipation PD AN78Lxx series V V mW −30 to +80 °C −55 to +150 Tstg AN78LxxM series Unit 40 *2 650 *3 Topr Operating ambient temperature Storage temperature Rating 35 *1 °C −55 to +125 *1 AN78L04/M, AN78L05/M, AN78L06/M, AN78L07/M, AN78L08/M, AN78L09/M, AN78L10/M, AN78L12/M, AN78L15/M *2 AN78L18/M, AN78L20/M, AN78L24/M *3 Follow the derating curve. When Tj exceeds 150°C, the internal circuit cuts off the output. AN78LxxM series is mounted on a standard board (glass epoxy: 20mm × 20mm × t1.7mm with Cu foil of 1cm2 or more). ■ Electrical Characteristics at Ta = 25°C • AN78L04, AN78L04M (4V type) Parameter Symbol Conditions Output voltage VO Tj = 25°C Output voltage tolerance VO VI = 6.5 to 19V, IO = 1 to 70mA Line regulation Load regulation Bias current REGIN REGL IBias Min 3.84 Typ 4 3.8 Max 4.16 Unit V 4.2 V VI = 6.5 to 19V, Tj = 25°C 50 145 mV VI = 7 to 19V, Tj = 25°C 40 95 mV IO = 1 to 100mA, Tj = 25°C 10 55 mV IO = 1 to 40mA, Tj = 25°C 4.5 30 mV 2 3 mA 1 mA 0.1 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 7 to 19V, Tj = 25°C Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 7 to 17V, IO = 40mA, f = 120Hz 48 40 µV 58 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.6 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 9V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L04) and Tj = 0 to 100°C (AN78L04M) 2 SFF00005CEB AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L05, AN78L05M (5V type) Parameter Symbol Output voltage VO Output voltage tolerance VO Line regulation Load regulation Bias current REGIN REGL IBias Conditions Tj = 25°C 4.8 VI = 7.5 to 20V, IO = 1 to 70mA 5 5.2 Unit V 5.25 V 150 mV VI = 8 to 20V, Tj = 25°C 45 100 mV IO = 1 to 100mA, Tj = 25°C 11 60 mV IO = 1 to 40mA, Tj = 25°C 5 30 mV Tj = 25°C 2 3 mA 1 mA 0.1 mA VI = 8 to 20V, Tj = 25°C Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C Vno f = 10Hz to 100kHz RR VI = 8 to 18V, IO = 40mA, f = 120Hz 4.75 Max 55 ∆IBias(IN) Ripple rejection ratio Typ VI = 7.5 to 20V, Tj = 25°C Bias current fluctuation to input Output noise voltage Min 47 40 µV 57 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.65 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 10V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L05) and Tj = 0 to 100°C (AN78L05M) • AN78L06, AN78L06M (6V type) Parameter Symbol Conditions Output voltage VO Tj = 25°C Output voltage tolerance VO VI = 8.5 to 21V, IO = 1 to 70mA Line regulation Load regulation Bias current REGIN REGL IBias Min 5.76 Typ 6 5.7 Max 6.24 Unit V 6.3 V VI = 8.5 to 21V, Tj = 25°C 60 155 mV VI = 9 to 21V, Tj = 25°C 50 105 mV IO = 1 to 100mA, Tj = 25°C 12 65 mV IO = 1 to 40mA, Tj = 25°C 5.5 35 mV 2 3 mA 1 mA 0.1 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 9 to 21V, Tj = 25°C Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 9 to 19V, IO = 40mA, f = 120Hz 46 50 µV 56 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.7 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 11V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L06) and Tj = 0 to 100°C (AN78L06M) SFF00005CEB 3 AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L07, AN78L07M (7V type) Parameter Symbol Conditions Min Output voltage VO Tj = 25°C 6.72 Output voltage tolerance VO VI = 9.5 to 22V, IO = 1 to 70mA 6.65 Line regulation Load regulation Bias current REGIN REGL IBias Typ 7 Max Unit 7.28 V 7.35 V VI = 9.5 to 22V, Tj = 25°C 70 165 mV VI = 10 to 22V, Tj = 25°C 60 115 mV IO = 1 to 100mA, Tj = 25°C 13 75 mV IO = 1 to 40mA, Tj = 25°C 6 35 mV Tj = 25°C 2 3 mA Bias current fluctuation to input ∆IBias(IN) VI = 10 to 22V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Ripple rejection ratio Vno f = 10Hz to 100kHz RR VI = 10 to 20V, IO = 40mA, f = 120Hz 45 50 µV 55 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.75 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 12V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L07) and Tj = 0 to 100°C (AN78L07M) • AN78L08, AN78L08M (8V type) Parameter Symbol Output voltage VO Output voltage tolerance VO Line regulation Load regulation Bias current REGIN REGL Conditions Min Tj = 25°C 7.7 VI = 10.5 to 23V, IO = 1 to 70mA 7.6 Typ Max Unit 8 8.3 V 8.4 V VI = 10.5 to 23V, Tj = 25°C 80 175 mV VI = 11 to 23V, Tj = 25°C 70 125 mV IO = 1 to 100mA, Tj = 25°C 15 80 mV IO = 1 to 40mA, Tj = 25°C 7 40 mV Tj = 25°C 2 3 mA Bias current fluctuation to input ∆IBias(IN) VI = 11 to 23V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Ripple rejection ratio IBias Vno f = 10Hz to 100kHz RR VI = 11 to 21V, IO = 40mA, f = 120Hz 44 60 µV 54 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.8 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 14V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L08) and Tj = 0 to 100°C (AN78L08M) 4 SFF00005CEB AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L09, AN78L09M (9V type) Parameter Symbol Conditions Min Output voltage VO Tj = 25°C 8.64 Output voltage tolerance VO VI = 11.5 to 24V, IO = 1 to 70mA 8.55 Line regulation Load regulation Bias current REGIN REGL IBias Typ 9 Max 9.35 Unit V 9.45 V VI = 11.5 to 24V, Tj = 25°C 90 190 mV VI = 12 to 24V, Tj = 25°C 80 140 mV IO = 1 to 100mA, Tj = 25°C 16 85 mV IO = 1 to 40mA, Tj = 25°C 8 45 mV Tj = 25°C 2 3 mA Bias current fluctuation to input ∆IBias(IN) VI = 12 to 24V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 12 to 22V, IO = 40mA, f = 120Hz 43 65 µV 53 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.85 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 15V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L09) and Tj = 0 to 100°C (AN78L09M) • AN78L10, AN78L10M (10V type) Parameter Symbol Conditions Min Output voltage VO Tj = 25°C 9.6 Output voltage tolerance VO VI = 12.5 to 25V, IO = 1 to 70mA 9.5 Line regulation Load regulation Bias current REGIN REGL IBias Typ Max 10 Unit 10.4 V 10.5 V 100 210 mV VI = 13 to 25V, Tj = 25°C 90 160 mV IO = 1 to 100mA, Tj = 25°C 17 90 mV IO = 1 to 40mA, Tj = 25°C 9 45 mV Tj = 25°C 2 3 mA VI = 12.5 to 25V, Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 13 to 25V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 13 to 23V, IO = 40mA, f = 120Hz 42 70 µV 52 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C − 0.9 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 16V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L10) and Tj = 0 to 100°C (AN78L10M) SFF00005CEB 5 AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L12, AN78L12M (12V type) Parameter Symbol Output voltage VO Output voltage tolerance VO Line regulation Load regulation Bias current REGIN REGL IBias Conditions Min Tj = 25°C 11.5 VI = 14.5 to 27V, IO = 1 to 70mA 11.4 Typ 12 Max 12.5 Unit V 12.6 V VI = 14.5 to 27V, Tj = 25°C 120 250 mV VI = 15 to 27V, Tj = 25°C 100 200 mV IO = 1 to 100mA, Tj = 25°C 20 100 mV IO = 1 to 40mA, Tj = 25°C 10 50 mV 2 3.5 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 15 to 27V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 15 to 25V, IO = 40mA, f = 120Hz 40 80 µV 50 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C −1 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 19V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L12) and Tj = 0 to 100°C (AN78L12M) • AN78L15, AN78L15M (15V type) Parameter Symbol Conditions Min 14.25 Output voltage VO Tj = 25°C Output voltage tolerance VO VI = 17.5 to 30V, IO = 1 to 70mA Line regulation Load regulation Bias current REGIN REGL IBias 14.4 Typ 15 Max 15.6 Unit V 15.75 V VI = 17.5 to 30V, Tj = 25°C 130 300 mV VI = 18 to 30V, Tj = 25°C 110 250 mV IO = 1 to 100mA, Tj = 25°C 25 150 mV IO = 1 to 40mA, Tj = 25°C 12 75 mV 2 3.5 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 18 to 30V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 18 to 28V, IO = 40mA, f = 120Hz 38 90 µV 48 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C −1.3 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 23V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L15) and Tj = 0 to 100°C (AN78L15M) 6 SFF00005CEB AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L18, AN78L18M (18V type) Parameter Symbol Output voltage VO Output voltage tolerance VO Line regulation Load regulation Bias current REGIN REGL IBias Conditions Min Tj = 25°C 17.3 VI = 20.5 to 33V, IO = 1 to 70mA 17.1 Typ 18 Max 18.7 Unit V 18.9 V VI = 20.5 to 33V, Tj = 25°C 45 300 mV VI = 21 to 33V, Tj = 25°C 35 250 mV IO = 1 to 100mA, Tj = 25°C 30 170 mV IO = 1 to 40mA, Tj = 25°C 15 85 mV 2 3.5 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 21 to 33V, Tj = 25°C 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 21 to 31V, IO = 40mA, f = 120Hz 36 150 µV 46 dB Minimum input/output voltage difference VDIF(min) Tj = 25°C 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C −1.5 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 27V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L18) and Tj = 0 to 100°C (AN78L18M) • AN78L20, AN78L20M (20V type) Parameter Symbol Conditions Output voltage VO Tj = 25°C Output voltage tolerance VO VI = 22.5 to 35V, IO = 1 to 70mA Line regulation Load regulation Bias current REGIN REGL IBias Typ 20 19 Max 20.8 Unit V 21 V 50 300 mV VI = 23 to 35V, Tj = 25°C 40 250 mV IO = 1 to 100mA, Tj = 25°C 35 180 mV IO = 1 to 40mA, Tj = 25°C 17 90 mV 2 3.5 mA 1 mA 0.1 mA Tj = 25°C ∆IBias(IN) VI = 23 to 35V, Tj = 25°C Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25°C Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 23 to 33V, IO = 40mA, f = 120Hz VDIF(min) 19.2 VI = 22.5 to 35V, Tj = 25°C Bias current fluctuation to input Minimum input/output voltage difference Min Tj = 25°C 34 170 µV 44 dB 1.7 V Output short-circuit current IO(Short) Tj = 25°C, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125°C −1.7 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 29V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L20) and Tj = 0 to 100°C (AN78L20M) SFF00005CEB 7 AN78Lxx/AN78LxxM Series ■ Electrical Characteristics at Ta = 25°C (continued) • AN78L24, AN78L24M (24V type) Parameter Symbol Conditions Output voltage VO Tj = 25°C Output voltage tolerance VO VI = 26.5 to 39V, IO = 1 to 70mA Line regulation Load regulation Bias current REGIN REGL IBias Min 23 Typ 24 22.8 Max 25 Unit V 25.2 V VI = 26.5 to 39V, Tj = 25℃ 60 300 mV VI = 27 to 39V, Tj = 25℃ 50 250 mV IO = 1 to 100mA, Tj = 25℃ 40 200 mV IO = 1 to 40mA, Tj = 25℃ 20 100 mV 2 3.5 mA Tj = 25°C Bias current fluctuation to input ∆IBias(IN) VI = 27 to 39V, Tj = 25℃ 1 mA Bias current fluctuation to load ∆IBias(L) IO = 1 to 40mA, Tj = 25℃ 0.1 mA Output noise voltage Vno f = 10Hz to 100kHz Ripple rejection ratio RR VI = 27 to 37V, IO = 40mA, f = 120Hz 34 200 µV 44 dB Minimum input/output voltage difference VDIF(min) Tj = 25℃ 1.7 V Output short-circuit current IO(Short) Tj = 25℃, VI = 35V 140 mA Output voltage temperature coefficient ∆VO/Ta IO = 5mA, Tj = 0 to 125℃ −2 mV/°C Note 1) The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10ms) that the characteristic value drift due to the chip junction temperature rise can be ignored. Note 2) Unless otherwise specified, VI = 33V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, Tj = 0 to 125°C (AN78L24) and Tj = 0 to 100°C (AN78L24M) 8 SFF00005CEB AN78Lxx/AN78LxxM Series PD Ta (AN78LxxM series) Mounted on standard board (glass epoxy: 20mm × 20mm × t1.7mm with Cu foil of 1cm2 or more) 0.6 0.4 0.2 0 0 20 40 60 0.8 0.6 0.4 0.2 0 80 100 120 140 160 0 20 40 60 80 100 120 140 160 Ambient temperature Ta (°C) Ambient temperature Ta (°C) RR f Input transient response 80 15 10 60 40 20 0 10 100 1k 10k 100k Frequency f (Hz) Output voltage fluctuation (mV) Ripple rejection RR (dB) AN78L05 AN78L05 VI = 8 to 18V IO = 40mA 5 10 0 −10 −20 0 2 4 6 Time t (µs) 8 2.0 IO = 10 0mA 70mA 1.5 40mA 1mA 1.0 0.5 0 0 25 50 75 100 125 Junction temperature Tj (°C) Load transient response 20 100 VDIF(min) Tj 2.5 10 AN78L05 0.2 0.1 0 1 Output current IO (A) Independent IC without a heat sink Rth(j-a) = 190°C/W PD = 658mW (25°C) 0.8 Power dissipation PD (W) Power dissipation PD (W) 1.0 Input voltage VI (V) Output voltage fluctuation (V) PD Ta (AN78Lxx series) 1.0 Minimum input/output voltage difference VDIF(min) (V) ■ Main Characteristics 0 −1 −2 0 10 20 30 40 50 Time t (µs) IBias Ta 3.0 AN78L05 IO = 5mA Bias current IBias (mA) 2.5 VIN = 28V 2.0 18V 10V 1.5 1.0 0.5 0 −25 0 25 50 75 100 125 Ambient temperature Ta (°C) SFF00005CEB 9 AN78Lxx/AN78LxxM Series ■ Basic Regulator Circuit Input Output 1 2 AN78Lxx CO CI 3 CI is necessary when the input line is long. CO improves the transient response. ■ Usage Notes 1. Cautions for a basic circuit CI: When a wiring from a smoothing circuit to a three-pin regulator is long, it is likely to oscillate at output. A capacitor of 0.1µF to 0.47µF should be connected near an input pin. CO: When any sudden change of load current is likely to occur, connect an electrolytic capacitor of 10µF to 100µF to improve a transitional response of output voltage. Di: Normally unnecessary. But add it in the case that there is a residual voltage at the output capacitor Co even after switching off the supply power because a current is likely to flow into an output pin of the IC and damage the IC. Di VI VO 3 1 CO 2 CI Figure 1 2. Other caution items 1) Short-circuit between the input pin and GND pin If the input pin is short-circuitted to GND or is cut off when a large capacitance capacitor has been connected to the IC's load, a voltage of a capacitor connected to an output pin is applied between input/output of the IC and this likely results in damage of the IC. It is necessary, therefore, to connect a diode, as shown in figure 2, to counter the reverse bias between input/output pins. In 3 1 2 GND 出力 Out + − CO Figure 2 2) Floating of GND pin If a GND pin is made floating in an operating mode, an unstabilized input voltage is outputted. In this case, a thermal protection circuit inside the IC does not normally operate. In this state, if the load is short-circuited or overloaded, it is likely to damage the IC. ■ Application Circuit Examples VI Q1 VI 20Ω VO 2 AN78Lxx IO 1 1 VO 2 3 VO' R2 AN78Lxx 0.33µF 3 0.1µF IBias V ' VO = VO' + IBias + O R1 R2 R1 Note) VO varies due to sample to sample variation of IBias . Never fail to adjust individually with R1 . 10 SFF00005CEB AN78Lxx/AN78LxxM Series ■ New Package Dimensions (Unit: mm) • SSIP003-P-0000S (Lead-free package) 4.00±0.20 (1.00) (1.00) 5.00±0.20 5.00±0.20 0.60±0.15 1 1.27 2.30±0.20 0.40+0.10 -0.05 13.30±0.50 0.40±0.10 3 1.27 • HSIP003-P-0000Q (Lead-free package) 1.00+0.10 -0.20 2.50±0.10 1 0.40+0.10 -0.05 1.50 3 0.40+0.10 -0.05 0.50+0.10 -0.05 0.15 M 0.42+0.10 -0.05 (0.75) 1.50±0.10 3.00 2.65±0.10 0.10 (0.40) 4.00+0.25 -0.20 4.50±0.10 1.55±0.20 SFF00005CEB 11 Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: • Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. • Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company. Please read the following notes before using the datasheets A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited. 2001 MAR