MAX1672 Maxim, MAX1672 Datasheet - Page 4

• Manufacturer Part Number: MAX1672
• Description: Step-Up/Down DC-DC Converter in QSOP Package
• Manufacturer: Maxim

Step-Up/Down DC-DC Converter
in QSOP Package
_____________________________Typical Operating Characteristics (continued)
(T
4
A
1000
100
400
300
200
100
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
10
0
0
0
A: V
B: V
V
MAXIMUM OUTPUT CURRENT vs.
1
OUT
IN
OUT
ILIM = PS (0.8A)
NO-LOAD BATTERY CURRENT
= 2V TO 4V (I
INPUT VOLTAGE (V
LINE-TRANSIENT RESPONSE
= 5V (100mV/div, AC COUPLED)
= 3.3V
2
1
vs. INPUT VOLTAGE
3
V
INPUT VOLTAGE (V)
OUT
INPUT VOLTAGE (V)
4
= 5V
MAXIMUM RECOMMENDED
OUTPUT CURRENT
OUT
2ms/div
5
= 100mA)
2
6
ILIM = GND (0.5A)
7
OUT
8
= 5V)
3
9 10 11
MAX1672-10
4
A
B
0.01
400
300
200
100
0.1
0
1
0
0
A: V
B: I
ILIM = PS (0.8A)
vs. INPUT VOLTAGE (V
OUT
1
OUT
MAXIMUM OUTPUT CURRENT
LOAD-TRANSIENT RESPONSE
= 10mA TO 100mA (V
2
= 5V (50mV/div, AC COUPLED)
SHUTDOWN CURRENT
1
vs. INPUT VOLTAGE
3
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
4
MAXIMUM RECOMMENDED
OUTPUT CURRENT
2ms/div
5
2
ILIM = GND (0.5A)
6
IN
7
= 2V)
OUT
8
3
= 3.3V)
9 10 11
MAX1672-11
4
A
B
400
300
200
100
70
60
50
40
30
20
10
0
0.01
4
A: V
B: I
LINEAR REGULATOR POWER-SUPPLY
MAXIMUM RECOMMENDED
OUTPUT CURRENT
V
REJECTION RATIO vs. FREQUENCY
OUT
L1
OUTPUT RIPPLE (MEDIUM LOAD)
OUT
5
MAXIMUM OUTPUT CURRENT
(500mA /div) (V
(POWER DISSIPATION LIMIT)
T
T
= 3.3V
A
A
= 5V (20mV/div, AC COUPLED)
0.1
= +25°C
= +85°C
6
vs. INPUT VOLTAGE
V
OUT
INPUT VOLTAGE (V)
FREQUENCY (kHz)
7
= 5V
1
10 s/div
IN
= 2.7V, I
8
V
OUT
10
V
9
OUT
OUT
= 3.3V
= 5V
10
= 80mA)
100
MAX1672-12
11
1000
12
A
B