MAX618EEE Maxim Integrated Products, MAX618EEE Datasheet - Page 2

• Manufacturer Part Number: MAX618EEE
• Description: DC/DC Switching Controllers 28V PWM Step-Up DC/DC Converter
• Manufacturer: Maxim Integrated Products

Specifications of MAX618EEE

• Output Voltage: 3.05 V
• Output Current: 200 uA
• Input Voltage: 3 V to 28 V
• Supply Current: 500 uA
• Switching Frequency: 250 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C

ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
LX to GND ..............................................................-0.3V to +30V
VL to GND ................................................................-0.3V to +6V
SHDN, COMP, FB to GND ............................-0.3V to (VL + 0.3V)
PGND to GND.....................................................................±0.3V
Continuous Power Dissipation (T
28V, PWM, Step-Up DC-DC Converter
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
2
Note 1: With part mounted on 0.9 in.
Input Voltage
Supply Current, No Load
Supply Current, Full Load, VL
Connected to IN
Supply Current, Full Load
Shutdown Supply Current
VL Output Voltage
VL Load Regulation
VL Undervoltage Lockout
FB Set Voltage
FB Input Bias Current
Line Regulation
Load Regulation
LX Voltage
LX Switch Current Limit
Idle Mode Current-Limit
Threshold
LX On-Resistance
LX Leakage Current
COMP Maximum Output Current
COMP Current vs. FB Voltage
Transconductance
SHDN Input Logic Low
SHDN Input Logic High
Shutdown Input Current
Switching Frequency
Maximum Duty Cycle
IN
16-Pin QSOP (derate 15mW/°C above +70°C)...................1W
_______________________________________________________________________________________
= +6V, PGND = GND, C
PARAMETER
VL
= 4.7μF, T
A
= +70°C) (Note 1)
SYMBOL
2
ΔV
ΔV
R
I
I
I
LXOFF
COMP
ΔV
LXON
of copper.
V
V
V
LXON
V
V
DC
I
V
I
I
I
I
FB
IN
IN
IN
IN
FB
OUT
OUT
VL
LX
f
IN
IH
IL
VL
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
V
V
V
V
V
V
I
Rising edge, 1% hysteresis
V
V
V
PWM mode
V
FB = GND
ΔFB = 0.1V
SHDN = GND or VL
LOAD
IN
IN
IN
VL
IN
IN
FB
IN
OUT
LX
= 3V to 5.5V, V
= 3V to 28V, V
= 3.4V to 28V, V
= 28V, V
= 3.5V or 28V, no load
= 3V to 6V, V
< V
= 28V
= 1.6V
= 12V, I
= 0 to 2mA, V
IN
FB
LOAD
= 1.6V, SHDN = GND
CONDITIONS
OUT
FB
FB
= 10mA to 500mA
FB
FB
= 1.6V, SHDN = VL
= 12V
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Soldering Temperature (reflow) .......................................+260°C
= 1.4V, SHDN = VL = IN
= 1.4V, SHDN = VL,
= 1.6V
2.58
1.47
0.25
MIN
100
200
2.9
1.7
0.8
2.0
90
3
TYP
3.05
0.01
0.35
0.02
A
500
200
250
2.5
2.7
1.5
0.2
2.2
0.3
25
95
5
3
1
1
= +25°C.)
MAX
1.53
0.08
0.45
700
300
6.5
3.5
3.2
2.8
2.7
0.6
0.8
28
40
50
28
10
8
1
UNITS
mmho
%/V
kHz
mA
mA
mV
μA
μA
nA
μA
μA
μA
%
Ω
%
A
A
V
V
V
V
V
V
V