MAX1947ETA18+T Maxim Integrated Products, MAX1947ETA18+T Datasheet - Page 5

• Manufacturer Part Number: MAX1947ETA18+T
• Description: IC DC-DC CONV 1.8V 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX1947ETA18+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 250mA
• Frequency - Switching: Up to 2MHz
• Voltage - Input: 0.7 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Power - Output: 1.95W
• Output Voltage: 1.8 V
• Output Current: 273 mA
• Input Voltage: 0.7 V to 3.6 V
• Supply Current: 70 uA
• Switching Frequency: 650 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX1947ETA18+T

(V
IN
1.84
1.82
1.80
1.78
1.76
1.74
= 1.5V, Circuit of Typical Application Circuit, T
0
(AC-COUPLED)
(AC-COUPLED)
(AC-COUPLED)
50
100
vs. LOAD CURRENT
OUTPUT VOLTAGE
LOAD CURRENT (mA)
V
V
OUT
OUT
V
V
V
LX
IN
IN
I
L
_______________________________________________________________________________________
150
HEAVY-LOAD SWITCHING WAVEFORMS
200
LINE-TRANSIENT WAVEFORMS
Step-Up DC-DC Converter with RESET
250
300
10μs/div
2μs/div
350
Typical Operating Characteristics (continued)
1.84
1.82
1.80
1.78
1.76
1.74
MAX1947toc15
MAX1947toc13
A
= +25°C, unless otherwise noted.)
0.7
0.8
NO-LOAD OUTPUT VOLTAGE
1.5V
1V
50mV/div
50mV/div
50mV/div
2V/div
500mA/div
0.9
Low Input/Output Voltage
vs. INPUT VOLTAGE
1.0 1.1
INPUT VOLTAGE (V)
1.2
1.3
(AC-COUPLED)
(AC-COUPLED)
(AC-COUPLED)
1.4
1.5
V
I
LOAD
V
OUT
V
V
OUT
LX
IN
I
L
1.6 1.7
LIGHT-LOAD SWITCHING WAVEFORMS
LOAD-TRANSIENT WAVEFORMS
1.84
1.82
1.80
1.78
1.76
1.74
-40
10μs/div
2μs/div
-15
vs. TEMPERATURE
OUTPUT VOLTAGE
TEMPERATURE (°C)
10
MAX1947toc14
MAX1947toc16
35
I
LOAD
50mV/div
50mV/div
2V/div
500mA/div
200mA/div
50mV/div
60
= 40mA
85
5