Rainbow Electronics MAX1760 - Manual (Page 3)

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