MAX1759EUB 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1759EUB Datasheet PDF : 10 Pages
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Buck/Boost Regulating
Charge Pump in µMAX
ABSOLUTE MAXIMUM RATINGS
IN, OUT, FB, POK, SHDN to GND............................-0.3V to +6V
PGND to GND.....................................................................±0.3V
CXN to GND ................................................-0.3V to (VIN + 0.3V)
CXP to GND................-0.3V to (the greater of VIN or VOUT) + 1V
OUT Short to GND .........................................................Indefinite
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) .........444mW
Operating Temperature Range .......................... -40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN = V SHDN = 2V, FB = PGND = GND, CIN = 10µF, CX = 0.33µF, COUT = 10µF, TA = 0°C to +85°C, unless oth-
erwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
VIN
1.6
5.5
V
Input Undervoltage Lockout
Voltage
VUVLO
0.6
1.0
1.4
V
Output Voltage Adjustment Range
Output Voltage
VOUT
Maximum Output Current
Transient Load Current
ILOAD,MAX
Quiescent Supply Current
IQ
Shutdown Supply Current
IQ,SHDN
1.6V ≤ VIN ≤ 5.5V
2V ≤ VIN ≤ 5.5V, 1mA ≤ ILOAD ≤ 50mA
2.5V ≤ VIN ≤ 5.5V, 1mA ≤ ILOAD ≤ 100mA
2.5V ≤ VIN ≤ 5.5V
ILOAD ≤ 100mA (RMS)
VIN = V SHDN = 4V, VFB = 0, stepping down
VIN = V SHDN = 2V, VFB = 0, stepping up
1.6V ≤ VIN ≤ 5.5V, V SHDN = 0
2.5
5.5
V
3.17
3.3
3.43
V
3.17
3.3
3.43
100
mA
200
mA
50
90
µA
85
180
1
5
µA
Leakage Current into OUT in
Shutdown
VIN = 2V, VOUT = 3.3V, V SHDN = 0
1
5
µA
SHDN Logic Input Voltage
SHDN Input Leakage Current
FB Regulation Voltage
FB Input Current
FB Dual-Mode Threshold
VIL
VIH
ISHDN
VFB
1.6V ≤ VIN ≤ 5.5V
1.6V ≤ VIN ≤ 5.5V
V SHDN = 5.5V
VIN = 1.65V, VOUT = 3.3V
VFB = 1.27V
Internal feedback
External feedback
0.7 · VIN
-1
0.25 · VIN
V
1
µA
1.205 1.235 1.265
V
25
200
nA
100
50
mV
200
100
mV
POK Trip Voltage
Falling edge at FB
1.0
1.1
1.2
V
POK Output Low Voltage
VOL ISINK = 0.5mA, VIN = 2V
5
100
mV
POK Leakage Current
VPOK = 5.5V, VFB = 1.27V
0.01
0.2
µA
Switching Frequency
fOSC 1.6V ≤ VIN ≤ 5.5V, VFB = 1V
1.2
1.5
1.8 MHz
Output Short-Circuit Current
VOUT = 0, 2.5V ≤ VIN ≤5.5V, foldback current limit
110
mA
Thermal Shutdown Temperature
Rising temperature
160
°C
Thermal Shutdown Hysteresis
20
°C
Efficiency
VIN = 3.6V, ILOAD = 10mA
90
%
2 _______________________________________________________________________________________
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