MAX1674EUA+T Maxim Integrated Products, MAX1674EUA+T Datasheet - Page 5

• Manufacturer Part Number: MAX1674EUA+T
• Description: IC DC-DC CONV HI EFF 8-UMAX
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX1674EUA+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 5V, Adj
• Current - Output: 420mA
• Frequency - Switching: 500kHz
• Voltage - Input: 0.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Power - Output: 330mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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