Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsLM217LD13TR

May 2007 Rev. 4 1/18

LM217L

LM317L

Low current 1.2 to 37V adjustable voltage regulator

Features

■ Output voltage range: 1.2 to 37V

■ Output current in excess of 100 mA

■ Line regulation typ. 0.01%

■ Load regulation typ. 0.1%

■ Thermal overload protection

■ Short circuit protection

■ Output transition safe area compensation

■ Floating operation for high voltage applications

Description

The LM217L/LM317L are monolithic integrated

circuit in SO-8 and TO-92 packages intended for

use as positive adjustable voltage regulators.

They are designed to supply until 100 mA of load

current with an output voltage adjustable over a

1.2 to 37V range.

The nominal output voltage is selected by means

of only a resistive divider, making the device

exceptionally easy to use and eliminating the

stocking of many fixed regulators.

SO-8

TO-92

www.st.com

Order codes

Part numbers

Packages

SO-8 (Tape & reel) TO-92 (BAG)

(1)

1. Available in tape & reel with the suffix "-TR" and in Ammopak with the suffix "-AP". Please note that in these cases pins are

shaped according to tape & reel specifications

LM217L LM217LD13TR LM217LZ

LM317L LM317LD13TR LM317LZ

Summary of content (18 pages)

PAGE 1
LM217L LM317L Low current 1.2 to 37V adjustable voltage regulator Features ■ Output voltage range: 1.2 to 37V ■ Output current in excess of 100 mA ■ Line regulation typ. 0.01% ■ Load regulation typ. 0.
PAGE 2
LM217L/LM317L Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical performance . . . . . . . . . . .
PAGE 3
LM217L/LM317L 1 Diagram Figure 1.
PAGE 4
Pin configuration LM217L/LM317L 2 Pin configuration Figure 2.
PAGE 5
LM217L/LM317L Maximum ratings 3 Maximum ratings Table 1. Absolute maximum ratings Symbol VI-VO Parameter Input-output differential voltage PD Power dissipation TOP Operating junction temperature range TSTG Storage temperature range Figure 3.
PAGE 6
Electrical characteristics LM217L/LM317L 4 Electrical characteristics Table 2.
PAGE 7
LM217L/LM317L Table 3.
PAGE 8
Typical performance 5 Typical performance Figure 4. Current limit 8/18 LM217L/LM317L Figure 5.
PAGE 9
LM217L/LM317L 6 Application information Application information The LM317L provides an internal reference voltage of 1.25V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see Figure 4.), giving an output voltage VO of: VO = VREF (1 + R2/R1) + IADJ R2 The device was designed to minimize the term IADJ (100µA max) and to maintain it very constant with line and load changes. Usually, the error term IADJ × R2 can be neglected.
PAGE 10
Application circuits 7 Application circuits Figure 6. Basic adjustable regulator Figure 7. Voltage regulator with protection diodes Figure 8.
PAGE 11
LM217L/LM317L Figure 9. Application circuits Current regulator IO=VREF/R1 + IADJ = 1.25V/R1 Figure 10. 5V Electronic shut-down regulator Figure 11.
PAGE 12
Package mechanical data 8 LM217L/LM317L Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark.
PAGE 13
LM217L/LM317L Package mechanical data SO-8 MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8˚ (max.) 0.1 0.
PAGE 14
Package mechanical data LM217L/LM317L TO-92 MECHANICAL DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.
PAGE 15
LM217L/LM317L Package mechanical data Tape & Reel SO-8 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.
PAGE 16
Package mechanical data LM217L/LM317L Tape & Reel for TO-92 MECHANICAL DATA mm. DIM. MIN. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u Φ1 Φ2 inch TYP MAX. MIN. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 TYP. MAX. 0.189 0.150 0.063 0.091 0.019 2.54 ±2 18.00 0.50 18.50 15.50 12.9 7.05 2.94 0.492 0.222 0.096 19.0 6.3 9.25 0.689 0.224 0.335 0.508 0.278 0.116 0.100 0.079 0.709 0.748 0.248 0.364 0.20 0.728 18.70 16.50 0.610 4.2 0.150 25.00 0.726 0.
PAGE 17
LM217L/LM317L Revision history 9 Revision history Table 4. Revision history Date Revision Changes 16-Mar-2005 2 Add Tape & reel for TO-92. 23-Dec-2005 3 Mistake on ordering table in header. 18-May-2007 4 Order codes has been updated and the document has been reformatted.
PAGE 18
LM217L/LM317L Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.