NCP4589
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, XDFN
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SOT23
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SC−70
Thermal Resistance, Junction−to−Air
Symbol
RqJA
RqJA
RqJA
Value
250
238
263
Unit
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
−40°C ≤ TA ≤ 85°C; VIN = VOUT(NOM) + 1 V; IOUT = 1 mA; CIN = COUT = 1 mF; unless otherwise noted. Typical values are at TA = +25°C.
Parameter
Test Conditions
Symbol
Min
Typ
Max Unit
Operating Input Voltage
(Note NO TAG)
VIN
1.4
5.25
V
Output Voltage (Fast Mode)
Output Voltage Temp.
Coefficient
TA = +25°C,
IOUT = 5 mA
VOUT > 2 V
VOUT ≤ 2 V
−40°C ≤ TA ≤ 85°C,
IOUT = 5 mA
VOUT > 2 V
VOUT ≤ 2 V
TA = −40 to 85°C
VOUT
x0.99
x1.01
V
−20
20
mV
x0.975
x1.015
V
−50
30
mV
±50
ppm/°C
Line Regulation
VIN = VOUT + 0.5 V to
5V
VIN ≥ 1.4 V
IOUT = 1 mA,
(Low Power Mode)
IOUT = 10 mA,
(Fast Mode)
LineReg
0.50
%/V
0.02 0.20
Load Regulation
IOUT = 1 mA to 10 mA
VOUT > 2.0 V
VOUT ≤ 2.0 V
IOUT = 10 mA to 300 mA
LineReg
−1.0
−20
35
1.0
%
20
mV
80
mV
Dropout Voltage
Output Current
IOUT = 300 mA
0.8 V ≤ VOUT < 0.9 V
VDO
0.9 V ≤ VOUT < 1.0 V
1.0 V ≤ VOUT < 1.5 V
1.5 V ≤ VOUT < 2.6 V
2.6 V ≤ VOUT < 4.0 V
IOUT
0.62 0.85
V
0.55 0.78
0.48 0.70
0.34 0.50
0.23 0.35
300
mA
Short Current Limit
Quiescent Current
Supply Current
Standby Current
Fast Mode Switch−Over Current
Low Power Switch−Over
Current
VOUT = 0 V
IOUT = 0 mA, Low
Power Mode (Note 3)
VOUT ≤ 1.85 V
VOUT > 1.85 V
IOUT = 10 mA, Fast Mode
VCE = 0 V, TA = 25°C
IOUT = light to heavy load
IOUT = heavy to light load
ISC
IQ
IGND
ISTB
IOUTH
IOUTL
50
1.0
1.5
55
0.1
1.0
2.0
mA
4.0
mA
4.0
mA
1
mA
8.0
mA
mA
CE Pin Threshold Voltage
CE Input Voltage “H”
VCEH
1.0
V
CE Input Voltage “L”
VCEL
0.4
CE Pull Down Current
ICEPD
0.1
mA
AE Pin Threshold Voltage
AE Input Voltage “H”
VAEH
1.0
V
AE Input Voltage “L”
VAEL
0.4
3. The value of supply current is excluding the Pull−down constant current of CE and AE Pin
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