MAS9123 查看數據表（PDF） - Micro Analog systems

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MAS9123

80 mA LDO Voltage Regulator IC

Micro Analog systems 

DA9123.007

3 May 2004

◆ Power Dissipation

TA = -40°C to +85°C, typical values at TA = +27°C, VIN = VOUT(NOM) + 1.0 V, IOUT = 1.0 mA, CIN = 1.0 µF, CL = 1.0 µF, CBYPASS = 10 nF,

VCTRL = 2.0 V, unless otherwise specified.

Parameter

Symbol

Conditions

Min Typ Max Unit

Thermal Resistance

(Junction-to-Air)

RJA

thermal test board according

191

to JESD51-7 (4 layers),

SOT23-5 package

°C/W

mounted on MAS9123 CSP

210

evaluation board,

WL-CSP package

Maximum Power Dissipation

Pd

any ambient temperature

PdMAX

=

TJ(MAX) − TA

R JA

W

Note 1

Note 1: TJ(MAX) denotes maximum operating junction temperature (+125°C), TA ambient temperature, and RJA junction-to-air thermal

resistance specified above.

◆ Line and Load Regulation

TA = -40°C to +85°C, typical values at TA = +27°C, VIN = VOUT(NOM) + 1.0 V, IOUT = 1.0 mA, CIN = 1.0 µF, CL = 1.0 µF, CBYPASS = 10 nF,

VCTRL = 2.0 V, unless otherwise specified.

Parameter

Symbol

Conditions

Min Typ Max Unit

Line Regulation

Load Regulation

VOUT(NOM) + 1 V < VIN < 5.3 V,

IOUT = 50 mA

IOUT = 1.0 to 50 mA

0.75 2

mV

13.5 25

mV

◆ Noise and Ripple Rejection

TA = -40°C to +85°C, typical values at TA = +27°C, VIN = VOUT(NOM) + 1.0 V, IOUT = 1.0 mA, CIN = 1.0 µF, CL = 1.0 µF, CBYPASS = 10 nF,

VCTRL = 2.0 V, unless otherwise specified.

Parameter

Symbol

Conditions

Min Typ Max Unit

Output Noise Voltage

VRMS

10 Hz < f < 100 kHz

9.5

µVrms

Noise Density

PSRR

VN

IOUT = 50 mA,

f = 10 kHz

f = 1 kHz

f = 10 kHz

f = 100 kHz

24

nV

Hz

70

dB

68

58

◆ Dynamic Parameters

TA = -40°C to +85°C, typical values at TA = +27°C, VIN = VOUT(NOM) + 1.0 V, IOUT = 1.0 mA, CIN = 1.0 µF, CL = 1.0 µF, CBYPASS = 10 nF,

VCTRL = 2.0 V, unless otherwise specified.

Parameter

Symbol

Conditions

Min Typ Max Unit

Start-up Delay (from start-up

to 80% of VOUT(NOM))

Overshoot

Start-up Time

(settling time of voltage

transient from start-up to

within ±1% of VOUT(NOM))

VCTRL = 0 to 2.4 V, IOUT = 50 mA,

CL ≤ 1.0 µF

VCTRL = 0 to 2.4 V

VCTRL = 0 to 2.4 V, IOUT = 50 mA

CL ≤ 1.0 µF

7.5

µs

1.0 8.0

%

20

µs

CTRL

VOUT

50%

overshoot

80%

start-up delay

Figure1. Definitions of

start-up delay, overshoot

and start-up time.

start-up time

5 (12)

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