MAX1626-MAX1627 Maxim, MAX1626-MAX1627 Datasheet - Page 2

• Manufacturer Part Number: MAX1626-MAX1627
• Description: 5V/3.3V or Adjustable / 100% Duty-Cycle / High-Efficiency / Step-Down DC-DC Controllers
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to GND.......................................-0.3V, +17V
OUT, FB, 3/5, SHDN, REF, CS, EXT to GND ...-0.3V, (V+ + 0.3V)
Maximum Current at REF (I
Maximum Current at EXT (I
Continuous Power Dissipation (T
5V/3.3V or Adjustable, 100% Duty-Cycle,
High-Efficiency, Step-Down DC-DC Controllers
ELECTRICAL CHARACTERISTICS
(V+ = +3V to +16.5V, SHDN = 3/5 = 0V, T
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.
2
Input Voltage Range
Supply Current into V+
Undervoltage Lockout
Output Voltage
OUT Input Current
FB Threshold Voltage
FB Leakage Current
CS Input Current
CS Threshold Voltage
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Input Current
3/5 Input Voltage High
3/5 Input Voltage Low
3/5 Leakage Current
EXT Resistance
Minimum EXT Off Time
EXT Duty-Cycle Limit
Line Regulation
Load Regulation
Reference Voltage
REF Load Regulation
REF Line Regulation
SO (derate 5.88mW/°C above +70°C) ..........................471mW
_______________________________________________________________________________________
PARAMETER
EXT
REF
) ..........................................50mA
) ..........................................15mA
A
= +70°C)
SYMBOL
V
V
I
V
OUT
V+
OUT
I+
REF
CS
A
= 0°C to +85°C, unless otherwise noted.)
Operating, no load
V+ = SHDN = 16.5V (shutdown)
Circuit of Figure 1, 3/5 = V+ (Note 1)
Circuit of Figure 1, 3/5 = 0V (Note 1)
MAX1626, 3/5 = V+, output forced to 5V
MAX1627, includes hysteresis
MAX1627
SHDN = 0V or V+
3/5 = 0V or V+
V+ = 5V
Output forced to 0V
Output in regulation
6.0V < V+ < 12.0V, I
30mA < I
I
0µA ≤ I
V+ = 3V to 16.5V, I
LOAD
= 0µA
REF
LOAD
≤ 100µA
< 2.0A, V+ = 8V
CONDITIONS
LOAD
LOAD
Operating Temperature Range
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX1626ESA/MAX1627ESA ............................-40°C to +85°C
= 0µA
= 1A
V+ - 0.5
4.85
3.20
1.27
1.27
MIN
100
3.0
1.6
1.5
24
85
0
0
8
TYP
5.00
3.30
1.30
1.30
100
2.7
2.0
70
37
10
10
15
10
5
4
MAX
16.5
5.15
3.40
1.33
1.33
115
100
2.5
2.8
0.4
0.5
90
50
35
10
±1
±1
12
10
1
UNITS
mV/V
mV/A
µV/V
mV
mV
µA
µA
nA
µA
µA
µA
µs
%
Ω
V
V
V
V
V
V
V
V
V