RT4723P

Copyright © 2016 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS4723P-00

December

2016

www.richtek.com

7

Typical Application Circuit

BOOST

L1

PGND

4.7µF

VIN

LXP

SWIRE

VOP

VON

C1P

-0.6V to -2.4V

RT4723P

GND

E3

A2

D3

B2, E1

A1, C2, D2

B1

B3

C1

E2

2.5V to 4.6V

2.2µH

D1

10µF

4.6V

10µF

C1N

C3

1µF

C2P

C2N

A3

1µF

10µF

10µF

10µF

10µF

Table 1. Component List of Evaluation Board

Reference

Qty.

Part Number

Description

Package

Supplier

1

GRM188R61C475KAAJ 4.7

F/16V/X5R

0603

Murata

6

GRM188R61A106KE69 10

F/10V/X5R

0603

Murata

2

GRM155R61C105KE01

1

F/16V/X5R

0402

Murata

L1

1

GLCLK2R201A

2.2

H

2.5mm x 2.0mm x 1.0mm

ALPS

1269AS-H-2R2M = P2

2.2

H

Murata

Time Diagram

SWIRE Interface

90%

10%

Power Sequence

SWIRE

VOP

VON

Tss1

≤ 3ms

0

0

0

4.6V

-2.4V

1 2

Tstop > 350

μs

Tss2

≤ 2ms

-1.4V

Twait_int > 10ms

Toff_dly > 350

μs

1.5ms

≤ Tdly ≤ 2.5ms

10 11

…

Hi-Z

Hi-Z

VIN

0