MAS9123 查看數據表（PDF） - Micro Analog systems
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MAS9123 Datasheet PDF : 12 Pages
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DA9123.007
3 May 2004
ELECTRICAL CHARACTERISTICS
◆ Thermal Protection
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
Threshold High
TH
145 160 175
°C
Threshold Low
TL
135 150 165
°C
The hysteresis of 10°C prevents the device from turning on too soon after thermal shut-down.
◆ Control Terminal Specifications
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
Control Voltage
OFF State
VCTRL
−0.3
ON State
1.6
Control Current
ICTRL
VCTRL = VIN
VCTRL = 0 V
If CTRL-pin is not connected, MAS9123 is in OFF state (900 kΩ pull-down resistor to ground).
V
0.55
VIN + 0.3
µA
5
15
0
◆ Voltage 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
Output Voltage Tolerance
Dropout Voltage
VOUT
V
IOUT = 0 mA VOUT(NOM) − 0.05
VOUT(NOM) + 0.05
IOUT = 50 mA VOUT(NOM) − 0.10
VOUT(NOM) + 0.05
VDROP
mV
IOUT = 1 mA
46
IOUT = 10 mA
51
IOUT = 50 mA
95
◆ Current 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
Continuous Output Current
Short Circuit Current
Peak Output Current
Ground Pin Current
Ground Pin Current, Sleep
mode
IOUT
0
80
mA
IMAX
RL = 0 Ω
230
mA
IPK
VOUT > 95% * VOUT(NOM)
180
mA
IGND
IGND
IOUT = 0 mA
IOUT = 10 mA
IOUT = 50 mA
VCTRL = 0 V
TA = 27°C
µA
170
210
250
0.02 0.5
µA
TA = 85°C
0.2 2
4 (12)
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