MAX8885 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8885 Datasheet PDF : 8 Pages
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150mA, Low-Dropout Linear Regulator
with Power-OK Output
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VOUT(NOMINAL) + 1V, SHDN = IN, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
POWER-OK OUTPUT
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
(1 - VOUT / VOUT(NOMINAL))100, VOUT falling,
IOUT = 0
-3
-5
-8
Power-OK Voltage Threshold
VPOK
In dropout, VOUT falling
%
-5.3
Hysteresis, IOUT = 0
1
POK Output Voltage Low
POK Output Leakage Current
VOL
ISINK = 1mA
0 ≤ VPOK ≤ 6.5V, VOUT in regulation
0.4
V
1
µA
THERMAL PROTECTION
Thermal Shutdown Temperature TSHDN
Thermal Shutdown Hysteresis ∆TSHDN
170
°C
20
°C
Note 1: Limits are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed through cor-
relation using Statistical Quality Control (SQC) methods.
Note 2: Dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT for VIN = VOUT + 0.5V.
Typical Operating Characteristics
(MAX8885EUK30, VIN = +3.6V, CIN = 1µF, COUT = 4.7µF, SHDN = IN, TA = +25°C, unless otherwise noted.)
GROUND PIN CURRENT
vs. INPUT VOLTAGE
120
IOUT = 150mA
100
80
IOUT = 0
60
40
20
0
0123456
INPUT VOLTAGE (V)
GROUND PIN CURRENT vs.
OUTPUT LOAD
115
110
VIN = 5.0V
105
100
VIN = 3.5V
95
90
85
0 15 30 45 60 75 90 105 120 135 150
OUTPUT LOAD (mA)
GROUND PIN CURRENT vs.
OUTPUT LOAD
120
VIN = VOUT(NOMINAL) + 0.5V
115
VOUT = 5.0V
110
MAX8885EUK50
105
100
VOUT = 3.0V
95
MAX8885EUK30
90
85
0 15 30 45 60 75 90 105 120 135 150
OUTPUT LOAD (mA)
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