TK11120SI 查看數據表（PDF） - Toko America Inc

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产品描述 (功能)

生产厂家

TK11120SI

VOLTAGE REGULATOR WITH ON/OFF SWITCH

Toko America Inc  

TK111xxS

APPLICATION INFORMATION (CONT.)

The table below shows typical characteristics for several types and values of capacitance. Please note that the ESR

varies widely depending upon manufacturer, type, size, and material.

ESR

Capacitance

1.0 µF

2.2 µF

3.3 µF

10 µF

Aluminum

Capacitor

2.4 Ω

2.0 Ω

4.6 Ω

1.4 Ω

Tantalum

Capacitor

2.3 Ω

1.9 Ω

1.0 Ω

0.5 Ω

Ceramic

Capacitor

0.140 Ω

0.059 Ω

0.049 Ω

0.025 Ω

Note: ESR is measured at 10 kHz.

BOARD LAYOUT

Copper pattern should be as large as possible. Power dissipation is 500 mW for the SOT-23-5. A low ESR capacitor is

recommended. For low temperature operation, select a capacitor with a low ESR at the lowest operating temperature

to prevent oscillation, degradation of ripple rejection and increase in noise. The minimum recommended capacitance is

1.0 µF.

VIN

+

GND

VOUT

+

CONTROL

NOISE BYPASS

SOT-23-5 BOARD LAYOUT

March 1999 TOKO, Inc.

Page 13

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