Operating Temperature Range ......................... -40°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................. +300°C
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: 24-PIN TQFN
Package Code
Outline Number
Land Pattern Number
Junction-to-Ambient Thermal Resistance (θ
JA
)
Junction-to-Case Thermal Resistance (θ
JC
)
Junction-to-Ambient Thermal Resistance (θ
JA
)
Junction-to-Case Thermal Resistance (θ
JC
)
T2444+4C
21-0139
90-0022
48°C/W
3°C/W
36°C/W
3°C/W
THERMAL RESISTANCE, SINGLE-LAYER BOARD:
THERMAL RESISTANCE, FOUR-LAYER BOARD:
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.
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.
Electrical Characteristics
PARAMETER
Supply Voltage Range
Undervoltage Lockout (UVLO)
Shutdown Supply Current
(V
PV =
V
PV1
= V
PV2
= 3.3V, V
EN1
= V
EN2
= 3.3V. T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at
T
A
= +25°C under normal conditions, unless otherwise noted.) (Note 1)
SYMBOL
V
IN
V
UVLOR
V
UVLOF
I
IN_SHDN1
I
IN1
Supply Current
I
IN2
PWM Switching Frequency
Spread Spectrum
f
SW
SS
Rising
Falling
EN1, EN2 = low
EN1 = high, I
OUT1
= 0mA, skip,
V
OUT1
2% above regulation point
EN2 = high, I
OUT2
= 0mA, skip,
V
OUT2
2% above regulation point
Internally generated
Factory option enabled
2.4
1
40
40
2.0
CONDITIONS
Fully operational
MIN
3.0
2.7
2.6
2.2
80
80
2.2
±3
5
160
µA
160
2.4
MHz
%
TYP
MAX
5.5
2.9
UNITS
V
V
µA
www.maximintegrated.com
Maxim Integrated
│
2
MAX20416
2.2MHz Dual-Output, Low-Voltage
Step-Down Converters
Electrical Characteristics (continued)
(V
PV =
V
PV1
= V
PV2
= 3.3V, V
EN1
= V
EN2
= 3.3V. T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at
T
A
= +25°C under normal conditions, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
I
LOAD
= 0A to I
MAX
, 3.0V ≤ V
PV
≤ 5.5V,
PWM mode selected
V
PV
= V
PV1
= 3.3V, I
LX1
= 0.2A
V
PV
= V
PV1
= 3.3V, I
LX1
= 0.2A
Option 1 (1A)
Option 2 (2A)
Option 3 (3A)
Option 4 (3.6A)
MIN
TYP
MAX
UNITS
OUT1 SYNCHRONOUS STEP-DOWN CONVERTER
Voltage Accuracy
pMOS On-Resistance
nMOS On-Resistance
V
OUT1
R
HS1
R
LS1
I
LIM1_1
pMOS Current-Limit Threshold
I
LIM1_2
I
LIM1_3
I
LIM1_4
nMOS Zero-Crossing Threshold
Maximum Duty Cycle
Minimum On-Time
LX1 Discharge Resistance
Switching Phase
Skip Threshold
Soft-Start Time
I
ZX1
DC
MAX1
t
MINTON1
R
DIS1
PH
LX1
TH
SKIP1
t
SS1_0
t
SS1_1
V
EN1
= 0V (connected to LX1)
Respect to LX2 rising edge
Percentage of pMOS current-limit
threshold
Factory option selected (default)
Factory option selected
I
LOAD
= 0A to I
MAX
, 3.0V ≤ V
PV
≤ 5.5V,
PWM mode selected
V
PV
= V
PV2
=3.3V, I
LX2
= 0.2A
V
PV
= V
PV2
= 3.3V, I
LX2
= 0.2A
Option 1 (1A)
Option 2 (2A)
Option 3 (3A)
Option 4 (3.6A)
4
25
20
44
40
180
12
2.5
1.25
20
-1.5
35
20
1.4
2.8
4.5
5.1
75
50
1.9
3.8
5.8
6.5
150
100
68
80
mA
%
ns
Ω
degree
+1.5
150
100
%
mΩ
mΩ
A
%
ms
OUT2 SYNCHRONOUS STEP-DOWN CONVERTER
Voltage Accuracy
pMOS On-Resistance
nMOS On-Resistance
V
OUT2
R
HS2
R
LS2
I
LIM2_1
pMOS Current-Limit Threshold
I
LIM2_2
I
LIM2_3
I
LIM2_4
nMOS Zero-Crossing Threshold
Maximum Duty Cycle
Minimum On-Time
LX2 Discharge Resistance
Switching Phase
Skip Threshold
Soft-Start Time
I
ZX2
DC
MAX2
t
MINTON2
R
DISCH2
PH
LX2
TH
SKIP2
t
SS2_0
t
SS2_1
V
EN2
= 0V
Respect to LX2 rising edge
Percentage of pMOS current-limit
threshold
Factory option selected
Factory option selected
4
25
20
44
40
0
12
2.5
1.25
20
-1.5
35
20
1.4
2.8
4.5
5.1
75
50
1.9
3.8
5.8
6.5
150
100
68
80
mA
%
ns
Ω
degree
+1.5
150
100
%
mΩ
mΩ
A
%
ms
www.maximintegrated.com
Maxim Integrated
│
3
MAX20416
2.2MHz Dual-Output, Low-Voltage
Step-Down Converters
Electrical Characteristics (continued)
(V
PV =
V
PV1
= V
PV2
= 3.3V, V
EN1
= V
EN2
= 3.3V. T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at
T
A
= +25°C under normal conditions, unless otherwise noted.) (Note 1)
PARAMETER
THERMAL OVERLOAD
Thermal-Shutdown Temperature
Hysteresis
T
SHDN
T
HYST
T
J
rising
165
15
-3
-3
7.4
10% below threshold
10% above threshold
RESET1, RESET2
= 5.5V
3.0V ≤ V
PV
≤ 5.5V, sinking 2mA
1.5
0.5
0.1
V
PV
= 5.0V, T
A
= 25°C
0.2
50
1.8
I
SINK
= 2mA
V
PV
= 3.3V, I
SOURCE
= 2mA
2.7
0.5
100
200
2.6
0.4
-0.5
10
50
0.1
+0.5
0.2
+3
+3
°C
°C
%
%
ms
µs
µs
µA
V
V
V
V
µA
kΩ
MHz
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT1, OUT2 OPEN-DRAIN
RESET
OUTPUTS (RESET1,
RESET2)
Overvoltage-Threshold Accuracy
Undervoltage-Threshold Accuracy
Active Hold Period
Undervoltage-Propagation Delay
Overvoltage-Propagation Delay
RESET[1:2]-High
Leakage Current
Output Low Level
EN1, EN2, SYNC INPUTS
Input High Level
Input Low Level
Input Hysteresis
EN1, EN2 Pulldown Current
SYNC Input Pulldown
SYNC Input Frequency Range
SYNC OUTPUT
Output Low
Output High
V
OL
V
OH
V
IH
V
IL
V
ENHYST
I
ENPD
R
SYNCPD
f
SYNC
OV
ACC
UV
ACC
t
HOLD
t
UVDEL
t
OVDEL
I
ROZH
V
ROL
Rising, % of nominal output
Falling, % of nominal output
Note 1:
All units are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
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