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:3MAX1675EUA Datasheet Page:4MAX1675EUA Datasheet Page:6MAX1675EUA Datasheet Page:7MAX1675EUA Datasheet Page:8MAX1675EUA Datasheet Page:9 
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters
Typical Operating Characteristics (continued)
(L = 22µH, C
IN
= 47µF, C
OUT
= 47µF

0.1µF, C
REF
= 0.1µF, T
A
= +25°C, unless otherwise noted.)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX1674toc08
MAX1674/MAX1675/MAX1676
NO-LOAD BATTERY CURRENT
vs. INPUT BATTERY VOLTAGE
MAX1674toc07
START-UP VOLTAGE
vs. LOAD CURRENT
1.8
1.6
START-UP VOLTAGE (V)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.01
0.1
1
10
LOAD CURRENT (mA)
100
WITH 1N5817
WITHOUT DIODE
1.0
0.8
SHUTDOWN CURRENT (µA)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
1
140
INPUT BATTERY CURRENT (µA)
120
100
80
I
LIMIT
= 0.5A, 5.0V
60
40
20
0
0
I
LIMIT
= 0.5A, 3.3V
I
LIMIT
= 1A, 3.3V
I
LIMIT
= 1A, 5.0V
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
INPUT BATTERY VOLTAGE (V)
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SHUTDOWN THRESHOLD
vs. SUPPLY VOLTAGE
MAX1674TOC10
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE (V
OUT
= 5V)
800
700
600
500
400
300
200
0.5A CURRENT LIMIT
100
0
1A CURRENT LIMIT
MAX1674toc11
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE (V
OUT
= 3.3V)
700
600
1A CURRENT LIMIT
500
400
300
200
100
0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
INPUT VOLTAGE (V)
0.5A CURRENT LIMIT
MAX1674toc12
1.4
1.2
SHUTDOWN THRESHOLD (V)
1.0
0.8
0.6
0.4
0.2
0
0
900
MAXIMUM OUTPUT CURRENT (mA)
800
MAXIMUM OUTPUT CURRENT (mA)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
INPUT VOLTAGE (V)
HEAVY-LOAD SWITCHING WAVEFORMS
MAX1674 TOC13
SWITCH RESISTANCE vs. TEMPERATURE
0.40
V
LX
5V/div
I
LX
0.5A/div
0.35
RESISTANCE (Ω)
0.30
0.25
0.20
0.15
0.10
0.2
0.05
0
0
-60 -40
-20
0
20
40
60
80
100
2.0
2.5
N-CHANNEL
I
LIM
(A)
MAX1674toc13.5
LX CURRENT LIMIT
vs. OUTPUT VOLTAGE
MAX1674, MAX1676 (CLSEL = OUT)
MAX1674toc14
0.45
P-CHANNEL
1.2
1.0
0.8
0.6
0.4
MAX1675, MAX1676 (CLSEL = GND)
V
IN
= 2.4V
V
OUT
= 5.0V
1µs/div
V
OUT
AC COUPLED
100mV/div
3.0
3.5
4.0
4.5
5.0
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
_______________________________________________________________________________________
5
MAX167toc09
160