MAX1760(2001) Просмотр технического описания (PDF) - Maxim Integrated
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MAX1760 Datasheet PDF : 12 Pages
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0.8A, Low-Noise, 1MHz,
Step-Up DC-DC Converter
ELECTRICAL CHARACTERISTICS (continued)
(CLK/SEL = ON = FB = PGND = GND, ISET = REF, OUT = POUT, VOUT = 3.6V, TA = 0°C to +85°C. Typical values are at TA = +25°C
unless otherwise noted.)
PARAMETER
REFERENCES
Reference Output Voltage
Reference Load Regulation
Reference Supply Rejection
LOGIC INPUTS
CONDITIONS
IREF = 0
-1µA < IREF < 50µA
2.5V < VOUT < 5V
MIN TYP MAX UNITS
1.230 1.250 1.270 V
5
15
mV
0.2
5
mV
CLK/SEL Input Low Level
2.5V ≤ VOUT ≤ 5.5V
(0.2)VOUT
V
CLK/SEL Input High Level
ON Input Low Level (Note 6)
ON Input High Level (Note 6)
Input Leakage Current
Minimum CLK/SEL Pulse Width
Maximum CLK/SEL Rise/Fall Time
2.5V ≤ VOUT ≤ 5.5V
1.1V ≤ VOUT ≤ 1.8V
1.8V ≤ VOUT ≤ 5.5V
1.1V ≤ VOUT ≤ 1.8V
1.8V ≤ VOUT ≤ 5.5V
CLK/SEL, ON
(0.8)VOUT
V
0.2
V
0.4
VOUT - 0.2
V
1.6
0.01
1
µA
200
ns
100
ns
ELECTRICAL CHARACTERISTICS
(CLK/SEL = ON = FB = PGND = GND, ISET = REF, OUT = POUT, VOUT = 3.6V, TA = -40°C to +85°C, unless otherwise noted.) (Note 7)
PARAMETER
DC-DC CONVERTER
CONDITIONS
MIN
MAX UNITS
Output Voltage
VFB < 0.1V, CLK/SEL = OUT, includes load
3.17
regulation for 0 < ILX < 0.55A
3.38
V
FB Regulation Voltage
Internal Oscillator Frequency
Oscillator Maximum Duty Cycle (Note 3)
Output Voltage Lockout Threshold (Note 4)
Supply Current in Shutdown
No-Load Supply Current (Note 5)
DC-DC SWITCHES
Switch On-Resistance
N-Channel Current Limit
REFERENCE
Reference Output Voltage
Adjustable output, CLK/SEL = OUT, includes
load regulation for 0 < ILX < 0.55A
CLK/SEL = OUT
Rising edge
V ON = 3.6V
CLK/SEL = GND
1.215
0.75
80
2.00
N-channel
P-channel
1.0
IREF = 0
1.230
1.270
1.2
90
2.30
5
185
V
MHz
%
V
µA
µA
0.28
Ω
0.45
1.6
A
1.270
V
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