Operating Temperature Range ..........................-40ºC to +125ºC
Junction Temperature ...................................................... +150ºC
Storage Temperature Range .............................-65ºC to +150ºC
Lead Temperature (soldering, 10s) ................................. +300ºC
Soldering Temperature (reflow) ....................................... +260ºC
Package Thermal Characteristics
(Note 1)
TQFN
Junction-to-Ambient Thermal Resistance (θ
JA
) ..............35°C/W
Junction-to-Case Thermal Resistance (θ
JC
) .....................3°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
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
A
= V
PV1
= V
PV2
= V
PV3
= V
PV4
= 5.0V; T
A
= T
J
= -40ºC to +125ºC, unless otherwise noted. Typical values are at T
A
= +25ºC under
normal conditions, unless otherwise noted.) (Note 2)
PARAMETER
GENERAL
Supply Voltage Range
Supply Current
Shut-Off Current
Overvoltage Threshold
Undervoltage Monitor Threshold
UVLO Threshold
V
PV_
I
PV0
I
VPSD
Fully operational
No load, no switching,
V
EN1
= V
EN2
= V
EN3
= V
EN4
= V
PV_
V
EN1
= V
EN2
= V
EN3
=
V
EN4
= V
GND
Rising
Hysteresis
UVM option enabled
V
PV_
falling
V
PV_
rising
f
SW
Switching frequency = 2.2MHz
(see the
Selector Guide
)
Switching frequency = 3.2MHz
(see the
Selector Guide)
Spread-spectrum option = enabled
(see the Selector Guide)
2.0
3.0
2.2
3.2
+3
V
PV_
falling
V
PV_
hysteresis
2.68
3.0
2.4
MHz
3.4
%
4.15
T
A
= +25°C
T
A
= +125°C
5.6
3.0
2.5
3.8
0.1
2
5.8
0.1
4.3
0.1
4.45
6
5.5
5
2
V
mA
µA
V
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
PWM Switching Frequency
Spread Spectrum
Df/f
www.maximintegrated.com
Maxim Integrated │ 2
MAX20021/MAX20022
Automotive Quad, Low-Voltage
Step-Down DC-DC Converters
Electrical Characteristics (continued)
(V
A
= V
PV1
= V
PV2
= V
PV3
= V
PV4
= 5.0V; T
A
= T
J
= -40ºC to +125ºC, unless otherwise noted. Typical values are at T
A
= +25ºC under
normal conditions, unless otherwise noted.) (Note 2)
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