MAX1675EUA Datasheet Download

Part No.:
MAX1675EUA
Download:
Download Datasheet
Description:
[High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters]
File Size:
162 K
Page:
12 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
 MAX1675EUA Datasheet Page:1MAX1675EUA Datasheet Page:2MAX1675EUA Datasheet Page:4MAX1675EUA Datasheet Page:5MAX1675EUA Datasheet Page:6MAX1675EUA Datasheet Page:7MAX1675EUA Datasheet Page:8MAX1675EUA Datasheet Page:9 
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters
ELECTRICAL CHARACTERISTICS (continued)
(V
BATT
= 2V, FB = OUT (V
OUT
= 3.3V), R
L
= ˙∞,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Operating Current into OUT
(Note 3)
Shutdown Current into OUT
Efficiency
LX Switch On-Time
LX Switch Off-Time
FB Input Current
LBI Input Current
CLSEL Input Current
SHDN
Input Current
LBO
Low Output Voltage
LBO
Off Leakage Current
Damping Switch Resistance
SHDN
Input Voltage
CLSEL Input Voltage
V
IL
V
IH
V
IL
V
IH
0.8V
OUT
0.8V
OUT
0.2V
OUT
I
LBO
t
ON
t
OFF
I
FB
I
LBI
I
CLSEL
I
SHDN
SYMBOL
CONDITIONS
V
FB
= 1.4V, V
OUT
= 3.3V
SHDN
= GND
V
OUT
= 3.3V, I
LOAD
= 200mA
V
OUT
= 2V, I
LOAD
= 1mA
V
FB
= 1V, V
OUT
= 3.3V
V
FB
= 1V, V
OUT
= 3.3V
V
FB
= 1.4V
V
LBI
= 1.4V
MAX1676, CLSEL = OUT
V
SHDN
= 0 or V
OUT
V
LBI
= 0, I
SINK
= 1mA
V
LBO
= 5.5V, V
LBI
= 5.5V
MAX1676, V
BATT
= 2V
3
0.8
MIN
TYP
16
0.1
90
85
4
1
0.03
1
1.4
0.07
0.2
0.07
88
7
1.2
50
50
3
50
0.4
1
150
0.2V
OUT
MAX
35
1
UNITS
µA
µA
%
µs
µs
nA
nA
µA
nA
V
µA
V
V
MAX1674/MAX1675/MAX1676
Note 1:
Start-up voltage operation is guaranteed with the addition of a Schottky MBR0520 external diode between the input and
output.
Note 2:
Steady-state output current indicates that the device maintains output voltage regulation under load. See Figures 5 and 6.
Note 3:
Device is bootstrapped (power to the IC comes from OUT). This correlates directly with the actual battery supply.
ELECTRICAL CHARACTERISTICS
(V
BATT
= 2V, FB = OUT, R
L
=
∞,
T
A
= -40°C to +85°C,
unless otherwise noted.) (Note 4)
PARAMETER
Output Voltage
Output Voltage Range
Reference Voltage
FB, LBI Thresholds
Internal NFET, PFET
On-Resistance
Operating Current into OUT
(Note 3)
Shutdown Current into OUT
LX Switch On-Time
LX Switch Off-Time
LX Switch Current
Limit (NFET)
t
ON
t
OFF
I
LIM
R
DS(ON)
V
FB
= 1.4V, V
OUT
= 3.3V
SHDN
= GND
V
FB
= 1V, V
OUT
= 3.3V
V
FB
= 1V, V
OUT
= 3.3V
MAX1674, MAX1676 (CLSEL = OUT)
MAX1675, MAX1676 (CLSEL = GND)
2.7
0.75
0.75
0.36
V
REF
I
REF
= 0
SYMBOL
V
OUT
FB = OUT
FB = GND
CONDITIONS
MIN
3.13
4.75
2.20
1.2675
1.2675
MAX
3.47
5.25
5.5
1.3325
1.3325
0.6
40
1
7.0
1.25
1.25
0.69
UNITS
V
V
V
V
µA
µA
µs
µs
A
_______________________________________________________________________________________
3