MAX1730EUB-T Maxim Integrated Products, MAX1730EUB-T Datasheet - Page 4

• Manufacturer Part Number: MAX1730EUB-T
• Description: Charge Pumps 50mA Regulated Step-Down
• Manufacturer: Maxim Integrated Products

Specifications of MAX1730EUB-T

• Function: Step Down
• Output Voltage: 1.8 V, 1.9 V
• Output Current: 50 mA
• Maximum Operating Temperature: + 85 C
• Package / Case: uMAX-10
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

50mA Regulated Step-Down Charge Pump
for 1.8V or 1.9V Logic
4
(V
IN
100
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
= +3.6V, FB = GND, SHDN = IN, C
0
2.0
0.1
INPUT CURRENT vs. INPUT VOLTAGE
2.5
1
vs. OUTPUT CURRENT
V
OUTPUT CURRENT (mA)
3.0
IN
INPUT VOLTAGE (V)
= 3.6V
EFFICIENCY
V
3.5
IN
SHUTDOWN CURRENT
10
= 2.7V
V
IN
SUPPLY CURRENT
4.0
= 3.3V
NO-LOAD
V
IN
4.5
100
= 5.0V
5.0
1000
IN
5.5
= 1µF, C1 = C2 = 0.22µF, C
1.85
1.83
1.81
1.79
1.77
1.75
100
95
90
85
80
75
70
65
60
55
50
2.5
0.1
EFFICIENCY vs. INPUT VOLTAGE
3.0
1
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE
INPUT VOLTAGE (V)
3.5
V
IN
V
10
IN
4.0
= 3.3V
= 2.7V
OUT
Typical Operating Characteristics
V
IN
4.5
= 5.0V
= 4.7µF, T
100
I
OUT
5.0
= 25mA
1000
5.5
A
= +25°C, unless otherwise noted.)
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
95
90
85
80
75
70
65
60
55
50
0
2.5
0
OUTPUT VOLTAGE vs. INPUT VOLTAGE
EFFICIENCY vs. INPUT VOLTAGE
3.0
1
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
3.5
2
4.0
3
I
OUT
4.5
4
= 0 to 50mA
I
OUT
= 50mA
5.0
5
5.5
6