MAS9160 データシートの表示（PDF） - Micro Analog Systems Oy

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MAS9160

2-Output LDO Voltage Regulator IC

Micro Analog Systems Oy 

APPLICATION INFORMATION

DA9160.004

13 March 2003

VIN VIN

VOLTAGE

CTRL1

REFERENCE 160kΩ

+

OVER CURRENT

PROTECTION

OVER TEMPERATURE

PROTECTION

CTRL2

+

OVER CURRENT

PROTECTION

BYPASS

CBYPASS

VOUT1

VOUT2

GND

CL

CL

CIN

Parameter

Symbol Min Max Unit

Note

Output

Capacitance

CL

0.22

µF 1. Ceramic and film capacitors can

be used.

2. The value of CL should be

smaller than or equal to the value

Effective Series Resistance ESR 0.01 3

of CIN.

Ohm 1. When within this range, stable

with all IOUT = 0 mA…150 mA

values.

Bypass Capacitance

(Optional: if CBYPASS is not

used, noise performance and

CBYPASS

Typically

0.01

µF 1. Ceramic and film capacitors are

best suited. For maximum output

voltage accuracy DC leakage

PSRR decline, but rise time is

current through capacitor should

improved. If one of the

be kept as low as possible. In any

regulators is already on,

case DC leakage current must be

CBYPASS does not have effect

on rise time.)

below 100 nA.

Input Capacitance

CIN

0.5

µF 1. A big enough input capacitance

is needed to prevent possible

impedance interactions between

the supply and MAS9160.

2. Ceramic, tantalum, and film

capacitors can be used. If a

tantalum capacitor is used, it

should be checked that the surge

current rating is sufficient for the

application.

3. In the case that the inductance

between a battery and MAS9160

is very small (< 0.1 µH) 0.47 µF

input capacitor is sufficient.

4. The value of CIN should not be

smaller than the value of CL.

Values given on the table are minimum requirements unless otherwise specified. When selecting capacitors,

tolerance and temperature coefficient must be considered to make sure that the requirement is met in all

potential operating conditions.

9 (15)

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