MAX1677EEE Maxim Integrated Products, MAX1677EEE Datasheet - Page 7

• Manufacturer Part Number: MAX1677EEE
• Description: IC CONV DC-DC STEP-UP 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX1677EEE

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V or Adj Main, -28 ~ 28 V or Adj Secondary
• Current - Output: 350mA
• Frequency - Switching: 300kHz
• Voltage - Input: 0.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 696mW
• Output Voltage: 2.5 V to 5.5 V
• Output Current: 350 mA
• Input Voltage: 0.7 V to 5.5 V
• Supply Current: 35 uA
• Switching Frequency: 300 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

(Circuits of Figures 2 and 3, T
50mV/
50mV/
1V/
1V/
div
div
div
div
0V
0V
V
I
V
I
LOAD
OUT
IN
IN
= 2V TO 3V, V
= 2V TO 3V, V
= 5mA
= 150mA
MAIN BOOST CONVERTER
LCD LINE TRANSIENT
_______________________________________________________________________________________
LINE TRANSIENT
Step-Up and LCD Bias DC-DC Converter
(V
OUT
LCD
LCD
Compact, High-Efficiency, Dual-Output
5ms/div
5ms/div
= 3.3V,
= -20V,
= -20V)
A
= +25°C, unless otherwise noted.)
MAX1677-16
MAX1677-18
10V/
V
V
V
V
2V/
div
div
IN
OUT
IN
LCD
Typical Operating Characteristics (continued)
V
I
OUT
IN
= 2.4V, V
= 5mA
LCD STARTUP DELAY
LCD
= -20V,
10ms/div
MAX1677-20
50mV/
LCDON
V
1V/
1V/
1V/
div
div
0V
div
div
0V
LCD
V
I
V
I
OUT
LOAD
IN
IN
= 2V TO 3V, V
= 2.4V, V
= 5mA
= 10mA
MAIN BOOST CONVERTER
LCD LINE TRANSIENT
OUT
STARTUP DELAY
(V
= 3.3V,
LCD
LCD
500µs/div
5ms/div
= +12V,
= +12V)
MAX1677-17
MAX1677-19
V
V
ON
V
IN
LCD
OUT
7