S8355 datasheet(37/72 Pages) SII

Part #	S8355

Description	STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

PDF	72 Pages

Scroll/Zoom	100%

Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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37 / 72 page

STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

Rev.8.1_01

S-8355/56/57/58 Series

3. Using Ceramic Capacitor Example

When using small RESR parts such as ceramic capacitors for the output capacitance, mount a resistor (R1)

corresponding to the RESR in series with the ceramic capacitor (CL) as shown in Figure 26.

R1 differs depending on “L” value, the capacitance, the wiring, and the application (output load).

The following example shows a circuit using R1 = 100 m

Ω, output voltage = 3.3 V, output load = 500 mA and its

characteristics.

EXT

VOUT

VSS

VOUT

VIN

CIN

Figure 26 Using Ceramic Capacitor Circuit Example

Table 26

Condition

L Type Name

TR Type Name

SD Type Name

S-8357F33

CDRH6D28-220

FDN335N

M1FH3

μF × 2

100 m

S-8358B50

CDRH6D28-470

FDN335N

M1FH3

μF × 2

100 m

S-8357N33

CDRH6D28-100

FDN335N

M1FH3

μF × 2

100 m

Caution The above connection diagram and constant will not guarantee successful operation. Perform through

evaluation using the actual application to set the constant.

S8355 Datasheet(PDF) 37 Page - Seiko Instruments Inc

S8355 Datasheet(HTML) 37 Page - Seiko Instruments Inc

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