lt337am Linear Technology Corporation, lt337am Datasheet
lt337am
Available stocks
Related parts for lt337am
lt337am Summary of contents
Page 1
... This assures that all device protection circuits are working and eliminates fi eld failures experienced with other regulators that receive only standard electrical testing. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. R2 1μ ...
Page 2
... Consider the M and T Packages for Alternate Source TAB IS INPUT V OUT V IN ADJ PART MARKING* PACKAGE DESCRIPTION LT337AM 3-Lead Plastic DD LT337AT 3-Lead Plastic TO-220 LM337T 3-Lead Plastic TO-220 PART MARKING* PACKAGE DESCRIPTION LT337AM 3-Lead Plastic DD LT337AT 3-Lead Plastic TO-220 BOTTOM VIEW ...
Page 3
ORDER INFORMATION LEAD BASED FINISH TAPE AND REEL LM337T LM337T#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information ...
Page 4
LT137A/LM137 LT337A/LM337 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER CONDITIONS | V Reference Voltage V REF IN 3V ≤ 10mA ≤ I ΔV Load Regulation 10mA ≤ I OUT ΔI OUT ΔV Line Regulation 3V ...
Page 5
TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage 3.0 2 –55° 25° 150°C j 1.4 1.0 0 0.4 0.8 1.2 1.6 OUTPUT CURRENT (A) 137A G01 Ripple Rejection 100 C = –10μF ADJ ...
Page 6
LT137A/LM137 LT337A/LM337 TYPICAL PERFORMANCE CHARACTERISTICS Output Impedance –15V –10V OUT I = 500mA 1μ 25°C j – ADJ – ...
Page 7
APPLICATIONS INFORMATION Output Voltage The output voltage is determined by two external resis- tors, R1 and R2 (see Figure 1). The exact formula for the output voltage is: ⎛ ⎞ ...
Page 8
LT137A/LM137 LT337A/LM337 APPLICATIONS INFORMATION becomes shorted, due to the output capacitor discharging into the regulator. This can be prevented by using the diode D1 (see Figure 2) between the input and the output. The input capacitor, C2, is only required ...
Page 9
TYPICAL APPLICATIONS A high stability regulator is illustrated in the application circuit shown to the right. The output stability, load regula- tion, line regulation, thermal regulation, temperature drift, long term drift, and noise can be improved by a factor of ...
Page 10
LT137A/LM137 LT337A/LM337 SCHEMATIC DIAGRAM D1 60k Q7 Q6 750Ω Q13 4k 12k Q18 Q20 Q19 1k Q14 270Ω Q16 Q17 8k 20k Q15 600Ω 4. Q32 Q34 600Ω 100k Q33 18k Q8 ...
Page 11
... PACKAGE DESCRIPTION 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. OBSOLETE PACKAGES H Package 3-Lead TO-39 Metal Can (Reference LTC DWG # 05-08-1330) .350 – ...
Page 12
... TYP M(DD3) (STRAIGHT) 0801 .045 – .055 (1.143 – 1.397) .095 – .115 (2.413 – 2.921) T3 (TO-220) 0801 LT 0807 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1983 137afb ...