Rainbow Electronics MAX1765 - Manual (Page 4)

MAX1765
800mA, Low-Noise, Step-Up DC-DC Converter
with 500mA Linear Regulator
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V OUT = V POUT = V INL = V ONA = V ONL = 3.6V, CLK/SEL = FBL = ONB = TRACK = PGND = GND, ISET = REF (bypassed with
0.22µF), LX = open, OUTL = open (bypassed with 4.7µF), T A = 0°C to +85°C, unless otherwise noted. Typical values are at
TA =+25 °C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CONTROL INPUTS
1.1V < V OUT < 1.8V 0.2 O N A, O NB, O N L
( N ote 5)
1.8V < V OUT < 5.5V 0.4
CLK/SEL 1.2V < V OUT < 5.5V
0.2 ×
V
OUT
Input Low Level
TRACK 1.2V < V INL < 5.5V
0.2 ×
V INL
V
1.1V < V OUT < 1.8V
V OUT
- 0.2
O N A, O NB, O N L
( N ote 5)
1.8V < V OUT < 5.5V 1.6
CLK/SEL 1.2V < V OUT < 5.5V
0.8 ×
V OUT
Input High Level
TRACK 1.2V < V INL < 5.5V
0.8 ×
V INL
V
Input Leakage Current
(CLK/SEL, ONA, ONB,
ONL, TRACK)
0.01 1 µA
Internal Oscillator Frequency CLK/SEL = OUT 0.8 1 1.2 MHz
External Oscillator
Synchronization Range
0.5 1.2 MHz
Oscillator Maximum Duty Cycle 80 86 90 %
Minimum CLK/SEL Pulse 200 ns
M axi m um C LK/S E L Ri se/Fal l Ti m e 100 ns