R5220x

2

BLOCK DIAGRAM

OUTPUT

CONTROL

Soft

Start

Vref

Vref

Current Limit

MODE

∗1

CE

GND

OSC

Current Limit

*1 R5220xxxxA: DC/DC mode: Mode pin= "H", VR mode: Mode pin= "L"

R5220xxxxB: DC/DC mode: Mode pin= "L", VR mode: Mode pin= "H"

SELECTION GUIDE

In the R5220x Series, the output voltage, the version, and the taping type for the ICs can be selected at the

user's request.

The selection can be made with designating the part number as shown below;

↑ ↑ ↑↑ ↑ ↑

a b c d

e

f

Code

Contents

a

Designating the Package type:

D: SON-6

K: PLP2514-6

b

c

Setting Output Voltage

1: standard (b: output voltage; DC/DC output voltage

= LDO output voltage)

2: custom code (b: custom code; DC/DC output voltage

≠ LDO output voltage)

d

Designation of chip enable and Mode pin polarities

A: CE; "H" active, Mode pin; "H"

=DC/DC converter mode, "L"=LDO Mode

B: CE; "H" active, Mode pin; "L"

=DC/DC converter mode, "H"=LDO Mode

e

Designation of Taping Type; (Refer to Taping Specification) "TR" is prescribed as a standard.

f

Designation of composition of plating:

−F: Lead free plating (SON-6)

None: Au plating (PLP2514-6)