S-8353H37MC-IWWT2U datasheet(11/49 Pages) SII

Part #	S-8353H37MC-IWWT2U

Description	BUILT-IN TRANSISTOR SWITCHING REGULATOR

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Manufacturer	SII [Seiko Instruments Inc]

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STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR

Rev.3.0_01

S-8353/8354 Series

11

External parts

Coil:

CDRH6D28-101 of Sumida Corporation

Diode:

MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.

Capacitor:

F93 (16 V, 22

μF tantalum type) of Nichicon Corporation

VIN = VOUT(S)

× 0.6 applied, IOUT = VOUT(S) / 250 Ω

With shutdown function :

OFF

/

ON

pin is connected to VOUT

For VDD / VOUT separate type : VDD pin is connected to VOUT pin

Remark 1.

VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output

voltage.

2.

VDD / VOUT separate type

A step-up operation is performed from VDD = 0.8 V. However, 1.8 V

≤VDD≤10 V is recommended stabilizing

the output voltage and oscillation frequency. (VDD

≥1.8 V must be applied for products with a set value of less

than 1.9 V.)

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