LOW DROPOUT CMOS VOLTAGE REGULATOR

Rev.1.2

S-818 Series

2

Seiko Instruments Inc.

„ Block Diagram

Reference

voltage

VOUT

ON/OFF

VSS

VIN

*1: Parasitic diode

*1

ON/OFF

circuit

Figure 1 Block Diagram

„ Selection Guide

1. Product Name

S-818x xx A xx - xxx - T2

IC orientation in taping specifications

Product abbreviation

Package type

MC : SOT-23-5

UC :

A: ON/OFF pin has positive logic (high active)

B: ON/OFF pin has negative logic (low active)

SOT-89-5

Product type

Output voltage x 10

Table 1

Selection Guide

Output Voltage

SOT-23-5

SOT-89-5

2.0 V ± 2.0%

S-818A20AMC-BGA-T2

S-818A20AUC-BGA-T2

2.5 V ± 2.0%

S-818A25AMC-BGF-T2

S-818A25AUC-BGF-T2

2.8 V ± 2.0%

S-818A28AMC-BGI-T2

S-818A28AUC-BGI-T2

3.0 V ± 2.0%

S-818A30AMC-BGK-T2

S-818A30AUC-BGK-T2

3.3 V ± 2.0%

S-818A33AMC-BGN-T2

S-818A33AUC-BGN-T2

3.8 V ± 2.0%

S-818A38AMC-BGS-T2

S-818A38AUC-BGS-T2

4.0 V ± 2.0%

S-818A40AMC-BGU-T2

S-818A40AUC-BGU-T2

5.0 V ± 2.0%

S-818A50AMC-BHE-T2

S-818A50AUC-BHE-T2

Note:

Contact SII sales division for product with an output voltage other than those

specified above or product type B, low active product.