Fairchild Semiconductors Semiconductors Linear 1.C.s - Voltage Regulators LM304 Negative Voltage Regulator GENERAL DESCRIPTION The LM304 precision negative voltage regulator is constructed using the Fairchild Planar epitaxial process, This device can be programmed by a single external resistor to supply any voltage from OV to 30V from a single unregulated supply. When used with a separate floating bias supply, the 304 can provide 0.01% regulation with the output voltage limited only by the breakdown of external pass transistors. _ FEATURES imvV regulation with full load. 0.01%/V line regulation. O0.2mV/V ripple rejection. 0.3% temperature stability over full temperature range. REFERENCE TABLE CONNECTION DIAGRAM TOP VIEW See outline drawing No. 98 for dimensions. ABSOLUTE MAXIMUM RATINGS Input voltage 40V Input/output voltage 40V differential Power dissipation 500mW Operating temperature 0C to 70C range Storage temperature range 65C to +150C Code Stock No. Lead temperature 300C LM304H 35879X (soldering, 10 seconds) LM305 Positive Voltage CONNECTION DIAGRAM R lator REGULATED egulato outpuT GENERAL DESCRIPTION The LM305 is a monolithic positive voltage regula- tor constructed using the Fairchild Planar epitaxial process. Applications for this device includes both linear and switching regulator circuits with output voltages greater than 4.5V. This device wil! not oscillate when confronted with varying resistive and reactive loads and wili start reliably regardless of the toad within the ratings of the circuit. It also features fast response to both load and fine transient. FEATURES Low standby current drain. Adjustable output voltage from 4.5V to 40V. High output currents exceeding 10A with external components. Load regulation better than 0.1%, full load with current limiting. DC line regulation guaranteed at 0.038%/V. Ripple rejection of 0.01%/V. REFERENCE TABLE Code Stock No. LM305H 35580C CURRENT uimit (1) BOOSTER OUTPUT UNREGULATED INPUT TOP VIEW See outline drawing No. 97 for dimensions. ABSOLUTE MAXIMUM RATINGS input voltage 40V input/output voltage differential 40V Internal power dissipation 500mW Operating temperature range 0C to 70C Storage temperature range 65C te +150C Lead temperature 300C (soldering, 60 seconds) PLEASE QUOTE STOCK NO. AND. MANUFACTURER'S CODE WHEN ORDERING 781National Semiconductor | Semiconductors Linear I.C.s Voltage Regulators LM105 Series Positive Voltage Regulators RERERENCE TABLE Code Stock No. LM105H 19653C LM205H 19658D LM305H 19664H LM305AH 306048 GENERAL DESCRIPTION The LM108, Series are positive voltage regulators similar to the LM100, series except that an extra gain stage has been added for improved regulation. A redesign of the biasing circuitry removes any minimum load current requirement and at the same time reduces standby current drain, permitting higher voltage operation. They are direct, plug-in replace- ments for the LM100 series in both linear and switching regulator circuits with output voltages greater than 4.5V. FEATURES Output voltage adjustable from 4.5V to 40V Output currents in excess of 10A possible by adding external transistors Load regulation better than 0.1%, full load with current limiting DC line regulation guaranteed at 0.03%/V Ripple rejection of 0.01%/V Like the LM100 series they also feature fast resp onse to both load and line transients, freedom from oscillations with varying resistive and reactive loads and the ability to.start reliably on any load within rating. The circuits are built on a single silicon chip and are supplied in an 8-lead, TO-5 header. CONNECTION DIAGRAM Metal Can Output Top View Cc Limi urrent Limit (1) (7) Conensation Booster Output (2) (6) Feedback Unreg Input (3) (5) Ref. Bypass Ground Note: Pin 4 connected to case See outline drawing No. 97 for dimensions. ABSOLUTE MAXIMUM RATINGS Input Voltage LM105, LM205 LM305, LM305A 50V Input-Output Voltage Differential | 40V Power Dissipation LM105, LM205,LM305A 800mW LM305 500 mW Operating Temperature M105 0C to 70C ~ LM205 55C to + 125C LM305, LM305A 25C to +85C 0C to 70C Storage Temperature Range 65C to 150C Lead Temperature (soldering, 10 sec) 300C See next page for Electrical Characteristics PLEASE QUOTE STOCK NO. AND MANUFACTURERS CODE WHEN ORDERING 1009National Semiconductors. . . . ' Semiconductor Linear I.C.s Voltage Regulators ELECTRICAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Input voltage range LM105, LM205, LM305A 8.5 50 Vv LM305 8.5 40 Vv Output voltage range LM105, LM205, LM305A 4.5 40 Vv LM305 4.5 30 Vv Output-input voltage differential 3.0 30 Vv Load regulation LM105 O- Io: 12MA Rsc = 102, T= 25C 0.02 0.05 % Rsc=100, Ta =125C 0.03 0.1 % Rsc=10Q, Ta:= 55C 0.03 0.1 x% LM205 Ox Ip 12mMA Rs=100, T,=25C 0.02 0.05 % Rs_= 100, T,=85C 0.03 0.1 % Rsc= 102, Ta = -25C 0.03 0.1 % LM305 O= tos 12MA . Rsc=100, T,=28C 0.02 0.05 % Rsc=150, T,=70C 0.03 0.1 % Rsc=10Q, T,=0C 0.03 0.1 % LM305A Oo< I,< 45mA Rs=00, T,=25C 0.02 0.02 % Rsc=02, Ta=70C 0.03 0.04 % Rs=09, T,=0C 0.03 0.04 % Line regulation Vin Vour< 5V 0.025 0.06 | %IV Vin ~Vour >5V 0.015 0.03 YIN Ripple rejection Cree=10uF, f =120Hz 0.003 %IV Temperature stability LM105 ~55C< Tas 125C 0.3 1.0 % LM205 25C< Ta< 85C 0.3 1.0 % LM305, LM305A ocs Ta< 70C 0.3 1.0 % Feedback sense voltage : LM105, LM205, LM305 1.63 1.7 1.81 v LM305A 1.55 1.7 1.85 Vv Output noise voltage 10Hz < f< 10kHz Carp=0 0.005 % Crer> O1uF ; - 0.002 % Current limit sense voltage LM105, LM205, LM305 Rsc=100, T, 25C, 225 300 315 mV LM305A VoutT=0V 225 300 375 mV Standby current drain LM105, LM205, LM305A Vin =50V 0.8 2.0 mA LM30S Vin =40V 0.8 2.0 mA Long term stability 0.1 1.0 % MANUFACTURER'S CURRENT LIST PRICES ARE ALWAYS CHARGED 1010