LV5692P

No.A1876-10/14

Recommended Operation Circuit

Peripheral parts list

Name of part

Description

Recommended value

Remarks

C2, C4, C6, C8, C11, C16

Output stabilization capacitor

10

μF or more*

Electrolytic capacitor

C1, C3, C5, C7, C10, C15

Output stabilization capacitor

0.22

μF or more*

Ceramic capacitor

C12, C13

Capacity for phase amends

C12=1000pF

(C13=0pF: TBD)

Ceramic capacitor

C18, C20

Power supply bypass capacitor

100

μF or more

C17, C19

Oscillation prevention capacitor

0.22

μF or more

These capacitors must be placed near

the VCC and GND pins.

C14

EXT output stabilization capacitor

2.2

μF or more

R1, R2

Resistor for ILM voltage adjustment

R1/R2=9.1k

Ω/27kΩ for 5.0V

A resistor with resistance accuracy as

low as less than

±1% must be used.

R3

Resistor for AUDIO voltage setting

0.1

Ω for Ipeak=3A

Panasonic ERJB1CFR10U(Reference)

M1

USB output Pch-FET

2SJ650

D1

Diode for prevention of backflow

D2, D3

Diode for internal element protection

SB1003M3

note)The circuit diagram and the values are only tentative which are subject to change.

* : Make sure that the capacitors of the output pins are 10

μF or higher and ESR is 10Ω or lower in total and temperature characteristics and accuracy are taken

into consideration. Also the E-cap should have good high frequency characteristics.

• USB output voltage setting method

Formula for USB voltage calculation

USB =

1.26[V]

(USB-1.26)

1.26

Please design so that the ratio of R1 and R2 may fill the

above-mentioned expression for the set USB voltage.

(5.0-1.26)

1.26

2.968

27kΩ

9.1kΩ

2.967

The FB voltage is determined by the internal

band gap voltage of the IC (typ = 1.26V)

USB = 1.26V

× 2.967 + 1.26V 4.998V

+

14

12

10

8

6

4

2

15

13

11

9

7

5

3

1

+

C8

C7

ILM

+

C11

C12

CD

CTRL2

CTRL3

R1

R2

C13

D1

C4

C3

D3

D2

C14

EXT

+

C10

AUDIO

+

C1

C2

DSP

CTRL1

+

C6

C5

VCC

+

USB

+

+

VDD

R3

C16

C15

C17

C18

C19

C20

R2

1.26V

R1

10

9

USBGT

USB

12

RSNS

VCC