MAX6469TA 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6469TA Datasheet PDF : 20 Pages
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300mA LDO Linear Regulators with Internal
Microprocessor Reset Circuit
ELECTRICAL CHARACTERISTICS (continued)
(VIN = (VOUT + 0.5V) or +2.5V, whichever is greater, COUT = 3.3µF, TA = -40°C to +85°C. Typical specifications are at TA = +25°C,
unless otherwise noted.) (Note 2)
PARAMETER
Dropout Voltage
(Notes 3, 4)
Output Current Limit
Input Reverse Leakage Current
(OUT to IN Leakage Current)
SYMBOL
∆VDO
CONDITIONS
VOUT = +3.3V
(fixed output operation)
VOUT = +3.0V
(fixed output operation)
VOUT = +2.8V
(fixed output operation)
VOUT = +2.5V
(fixed output operation)
VIN ≥ 2.5V (Note 3)
IOUT = 50mA
IOUT = 150mA
IOUT = 300mA
IOUT = 50mA
IOUT = 150mA
IOUT = 300mA
IOUT = 50mA
IOUT = 150mA
IOUT = 300mA
IOUT = 50mA
IOUT = 150mA
IOUT = 300mA
VIN = 4V, VOUT = 5.5V, SHDN deasserted
MIN TYP MAX UNITS
23
32
55
90
114
180
25
40
61
100
114
190
mV
26
50
65
110
137
210
30
60
75
150
158
250
450
mA
0.01 1.5
µA
Startup Time Response
SHDN Input Low Voltage
SHDN Input High Voltage
SHDN Input Current
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
Line Regulation
VIL
VIH
TSHDN
∆TSHDN
Rising edge of VIN or SHDN to VOUT
within specification, RL = 68Ω, SET = GND,
20
µs
IOUT = 10mA
SHDN = VIN or GND
0.3 × VIN V
0.7 × VIN
V
-1
0.1
+1
µA
180
°C
20
°C
VOUT = 1.5V, 2.5V ≤ VIN ≤ 5.5V,
IOUT = 10mA
0.09
%/V
Load Regulation
VOUT = 1.5V, VIN = 2.5V, 1mA ≤ IOUT ≤
150mA
0.2
%
Output Voltage Noise
RESET CIRCUIT
VOUT Reset Threshold
(VFB for MAX6475/MAX6476/
MAX6483/MAX6484) (Note 5)
10Hz to 100kHz,
CIN = 0.1µF,
IOUT = 100mA,
VOUT = 1.5V
MAX6469–MAX6476
MAX6477–MAX6484
MAX64_ _ _ _ _ _ A
90
VTHOUT
MAX64_ _ _ _ _ _ B
85
150
75
92.5
87.5
µVRMS
95
%VOUT
90
VOUT to Reset Delay
(VFB for MAX6475/MAX6476/
MAX6483/MAX6484)
35
µs
Reset Timeout Period
(Note 6)
D1
D2
tRP
D3
D4
2.5
3.75
5.0
20
30
40
ms
150 225 300
1200 1800 2400
_______________________________________________________________________________________ 3
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