MAX1800 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1800 Datasheet PDF : 24 Pages
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Digital Camera Step-Up
Power Supply
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VOUT = VPOUT = 3.3V, PGND = GND, VONM = 3.3V, VON1 = VON2 = VON3 = VONA = 0, TA = -40°C to +85°C,
unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
LOGIC INPUTS (ONM, ON1, ON2, ON3, ONA)
Input Low Level
VIL
1.1V < VOUT < 1.8V (ONM only)
1.8V < VOUT < 5.5V
Input High Level
Input Leakage Current
MAIN DC/DC CONVERTER
Main Output Voltage Adjust
Range
VIH
1.1V < VOUT < 1.8V (ONM only)
1.8V < VOUT < 5.5V
VIN = 0 or VIN = VOUT = 5.5V
VOUT
MIN TYP MAX UNITS
0.2
V
0.4
VOUT -
0.2
V
1.6
0.01
1
µA
2.7
5.5
V
Main Undervoltage Lockout
Threshold (Note 3)
Rising edge
2.2
2.35
2.6
V
Main Output Maximum Duty
Cycle
Idle-Mode™ Threshold
ERROR AMPLIFIER
FBM Regulation Voltage
FBM to COMPM
Transconductance
FBM to COMPM Maximum
Voltage Gain
FBM Input Leakage Current
COMPM Minimum Output
Voltage
Measured at LX output, VFBM = 1V
VOSC = 0.625V
Unity gain configuration, FBM = COMPM
Unity gain configuration, FBM = COMPM,
-5µA < ILOAD < +5µA
VFBM = 1.35V
VFBM = 1.35V, COMPM open
80
85
88
%
0.3
A
1.23 1.250 1.27
V
60
100
140
µS
2000
V/V
0.01 100
nA
0.1
V
COMPM Maximum Output
Voltage
POWER SWITCHES
POUT Leakage Current
LX Leakage Current
Switch On- Resistance
N-Channel Current Limit
P-Channel Turn-Off Current
POWER READY
RDYM Trip Level
RDYM Output High Leakage
RDYM Output Voltage Low
VFBM = 1.15V, COMPM open
RON
VLX = 0, VPOUT = 5.5V
VLX = VOUT = 5.5V
N-channel
P-channel
VFBM rising edge, 1% typical hysteresis
VRDYM = 5.5V
ISINK = 1mA
2.00 2.15 2.30
V
0.1
20
µA
0.1
20
µA
100
180
mΩ
200
350
2
A
40
120
190
mA
1.09 1.125 1.16
V
0.01
1
µA
0.4
V
Idle Mode is a trademark of Maxim Integrated Products.
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