=

p ´

´

O

1

P2

Type 1

2

R

C2

=

p ´

´

O

1

P2

Type 2B

2

R3 C

=

p ´

´

1

P2

Type 2A

2

R3 C2

1

Z1

2

R3

C1

=

p ´

´

o

1

P1

2

R

C1

=

p ´

´

ea

o

R2

A1

gm

R || R3

R1 R2

=

´

´

+

ea

o

R2

A0

gm

R

R1 R2

=

´

´

+

Z1

P1

P2

2

1

2

f

EA

A0

2

2

1

1

2

f

2

f

æ

ö

+

ç

÷

p ´

è

ø

=

´

æ

ö æ

ö

+

´

+

ç

÷ ç

÷

p ´

p ´

è

ø è

ø

o

1

P0

2

R

C0

=

p ´

´

ea

o

gm

C

2

BW(Hz)

=

p ´

ol

o

ea

A

(V/V)

R

gm

=

P1

P2

P0

Z1

A0

A1

BW

TPS65320-Q1

www.ti.com

SLVSAY9A – DECEMBER 2012 – REVISED APRIL 2013

Figure 20. Frequency Response of the Type 2 Frequency Compensation

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

LDO Regulator

For the TPS65320-Q1 device, the design of the internal linear regulator is for low power consumption and

quiescent current about 40 µA in light-load applications.

Copyright © 2012–2013, Texas Instruments Incorporated

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