Number

Device

Function

Size chip (mm x mm)

Price

1

LM324

Quadruple Operation Amplifiers

1.6 x 1.52

.025

2

LM358

Dual Operation Amplifiers

1.65 x 0.9

.014

3

LM393

Dual Differential Comparators

1.3 x 1.2

.014

4

LM339

Quadruple Differential Comparators

1.55 x 1.6

.025

5

78XX

Positive-Voltage Regulators 1 A

2.0 x 2.0

.042

6

78LXX

Positive-Voltage Regulators O.I A

1.0 x 1.2

.014

7

78MXX

Positive-Voltage Regulators 0.5 A

1.8 x 1.55

.033

8

79XX

Negative-Voltage Regulators 1 A

2.0 x 2.0

.042

9

79LXX

Negative-Voltage Regulators O.I A

1.15 x 1.35

.014

10

LM317

3-Terminal Adjustable Regulators

2.45 x 1.85

.04

11

KA2410/2411

Tone Ringer

1.45 x 1.45

.025

12

UC3842/3843/3844/3845

Current-Mode PWM Controllers

2.38 x 1.63

.07

13

TL494

Pulse-Width-Modulation Control Circuit

2.05 x 2.03

.07

14

TL431

Adjustable Precision Shunt Regulator

1.6 x 1.3

.025

15

LP2950

100 mA Low Drop Out Voltage Regulator

2.05 x 1.15

.05

16

LP2951

100 mA Low Drop Out Voltage Regulator

2.05 x 1.15

.05

17

ULN2001-2005

High-Voltage, High-Current Darlington Arrays

2.5 x 1.5

.06

18

ULN2801-2805;2823,2824

High-Voltage, High-Current Darlington Arrays

2.8 x 1.5

.06

19

OA741

Operation Amplifier

1.5 x 1.65

.04

20

NE555

Precision Timer

1.02 x 1.05

.015

21

LM386

Low Voltage Audio Power Amplifier

1.4 x 1.6

.025