MAX1698(2000) 查看數據表（PDF） - Maxim Integrated
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MAX1698 Datasheet PDF : 8 Pages
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High-Efficiency Step-Up
Current Regulator for LEDs
ELECTRICAL CHARACTERISTICS
(VCC = +3.3V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
Quiescent Supply Current
Undervoltage Lockout
VCC
ICC
VFB = 0.3V
Rising edge
FB Regulation Voltage
CS Trip Current
ADJ = REF
VFB
VADJ = 100mV
FB = GND
Minimum Off Time
Maximum On Time
ADJ Start Threshold
tOFF(MIN) FB = GND, ADJ = REF
tON(MAX) FB = GND, ADJ = REF, CS = GND
FB Input Bias Current
ADJ Input Bias Current
Shutdown Supply Current
IFB
VFB = 300mV
IADJ ADJ = REF
SHDN = GND
REF Output Voltage
REF Load Regulation
REF Short-Circuit Current
VREF
∆VREF
IREF = 0
IREF = 0 to 150µA
REF = GND
REF Power-Supply Rejection
Ratio
PSRR VCC = 2.7V to 5.5V
EXT On-Resistance
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Bias Current
VIH
VIL
I SHDN
VCC = 5V
VCC = 2.7V to 5.5V
VCC = 2.7V to 5.5V
VCC = 2.7V to 5.5V
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
MIN
MAX UNITS
2.7
5.5
V
500
µA
2.20
2.65
V
280
320
mV
13
35
0.8
3.0
A
0.6
1.4
µs
9
21
µs
25
75
mV
-20
20
nA
-50
50
nA
1
µA
1.17
1.33
V
-30
mV
1
mA
+2 mV/V
8
Ω
2
V
0.8
V
-1
1
µA
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