Operating Temperature Range ........................... -40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Note 1:
Maximum power dissipation is obtained using JEDEC JESD51-5 and JESD51-7 standards.
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.
Package Information
PACKAGE TYPE: 16 TQFN
Package Code
Outline Number
Land Pattern Number
T1655+3
21-0140
90-0072
For the latest package outline information and land patterns (footprints), go to
www.maximintegrated.com/packages.
Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Electrical Characteristics
(V
EN
= V
IN
= 1.8V, V
OUT
= 1.5V, I
OUT
= 2mA, T
A
= -40°C to +105°C (MAX8556ETE+) and T
A
= -40°C to +85°C (MAX8557ETE+),
typical values are at T
A
= +25°C, unless otherwise noted.) (Note 2)
PARAMETER
IN
Input Voltage Range
Input Undervoltage Lockout
OUT
Output Voltage Range
Load Regulation
Line Regulation
Dropout Voltage
Regulated Output-Voltage Current
Limit
Load Capacitance
FB
FB Threshold Accuracy
(Note 4)
FB Input Bias Current
V
OUT
= 1.225V to 3V, V
IN
= V
OUT
+ 0.2V to 3.6V,
I
OUT
= 2mA to 4A
V
FB
= 0.5V, V
IN
= 3.6V
495
500
0.001
505
1
mV
µA
I
OUT
= 2mA to 4A
V
IN
= 1.425V to 3.6V, V
OUT
= 1.225V
V
IN
= 1.425V, I
OUT
= 4A, V
FB
= 480mV
V
IN
= 3.6V, V
OUT
= 3V, V
FB
= 460mV
ESR < 50mA (Note 3)
5
16
-0.15
0.5
0.1
0
100
7
+0.15
200
9
120
3.4
V
%/A
%/V
mV
A
µF
V
IN
rising, 70mV hysteresis
V
IN
falling
1.425
1.30
1.23
1.35
1.28
3.600
1.40
1.33
V
V
CONDITIONS
MIN
TYP
MAX
UNITS
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Maxim Integrated
│
2
MAX8556/MAX8557
4A Ultra-Low-Input-Voltage
LDO Regulators
Electrical Characteristics (continued)
(V
EN
= V
IN
= 1.8V, V
OUT
= 1.5V, I
OUT
= 2mA, T
A
= -40°C to +105°C (MAX8556ETE+) and T
A
= -40°C to +85°C (MAX8557ETE+),
typical values are at T
A
= +25°C, unless otherwise noted.) (Note 2)
PARAMETER
GND
GND Supply Current
GND Shutdown Current
POK
FB Power-OK Fault Threshold
POK Output Voltage, Low
POK Output Current, High
POK Delay Time
EN
Enable Input Threshold
Enable Input Bias Current
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
POR
FB Power-On Reset Fault
Threshold
POR Output Voltage, Low
POR Output Current, High
POR Rising Delay Time
SOFT-START
Soft-Start Time
Note 2:
Specifications to T
A
= -40°C are guaranteed by design and not production tested.
Note 3:
Guaranteed by design, not production tested.
Note 4:
Minimum supply voltage for output accuracy must be at least 1.425V.
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