Frequency (Hz)

0

10

20

30

40

50

60

70

80

10

100

1k

10k

100k

1m

D001

CADJ = 10 µF

CADJ = 0 µF

O

V

R2

R1

1

1.25

-

æ

ö

=

-

ç

÷

-

è

ø

LM237, LM337

SLVS047L – NOVEMBER 1981 – REVISED JANUARY 2015

www.ti.com

Typical Application (continued)

9.2.2 Detailed Design Procedure

Since the current is coming from ground, the same amount of current will flow through R2. Therefore, the size of

(1)

9.2.3 Application Curves

Figure 4. Ripple Rejection Over Frequency

10 Power Supply Recommendations

For best performance, the difference in voltage between the output and input must be between -2.5 V and -37 V.

A 1-µF solid tantalum capacitor is required on the input pin if the regulator is more than 10 cm from the power

supply filter capacitor. A 1-µF solid tantalum or 10-µF aluminum electrolytic capacitor is required on the output

pin for stability.

10

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