LM26420XMH NSC [National Semiconductor], LM26420XMH Datasheet - Page 4

• Manufacturer Part Number: LM26420XMH
• Description: Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator
• Manufacturer: NSC [National Semiconductor]

www.national.com
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics Per Buck
Limits in standard type are for T
+125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the
most likely parametric norm at T
V
FB Voltage
EN Voltage
SW Voltage
ESD Susceptibility
R
R
ΔV
IN
V
Symbol
V
DSON_TOP
DSON_BOT
I
I
I
V
UVLO
SW_TOP
I
I
CL_TOP
CL_BOT
D
PG-TH-U
PG-TH-L
QVINC
QVIND
F
V
EN_TH
F
ΔΦ
FB
I
I
MAX
EN
Human Body Model
SW
FB
B
FB
/V
IN
Feedback Voltage
Feedback Voltage Line Regulation
Feedback Input Bias Current
Under-voltage Lockout
UVLO Hysteresis
Switching Frequency
Frequency Fold-back
Maximum Duty Cycle
TOP Switch On Resistance
BOTTOM Switch On Resistance
TOP Switch Current Limit
BOTTOM Switch Reverse Current Limit
Phase Shift Between SW
Enable Threshold Voltage
Enable Threshold Hysteresis
Switch Leakage
Enable Pin Current
Upper Power Good Threshold
Upper Power Good Hysteresis
Lower Power Good Threshold
Lower Power Good Hysteresis
VINC Quiescent Current (non-switching)
with both outputs on
VINC Quiescent Current (switching) with
both outputs on
VINC Quiescent Current (shutdown)
VIND Quiescent Current (non-switching)
VIND Quiescent Current (switching)
VIND Quiescent Current (shutdown)
(Note
Parameter
J
3)
J
= 25°C only; limits in boldface type apply over the junction temperature (T
= 25°C, and are provided for reference purposes only.
1
and SW
(Note
-0.5V to 7V
-0.5V to 3V
-0.5V to 7V
-0.5V to 7V
2
1)
1.5kV
V
V
V
LM26420-X
LM26420-Y
LM26420-X
LM26420-Y
LM26420-X
LM26420-Y
LLP-16 Package
eTSSOP-20 Package
LLP-16 Package
eTSSOP-20 Package
V
V
Sink/Source
FB Pin Voltage Rising
FB Pin Voltage Rising
LM26420X/Y V
LM26420X/Y V
All Options V
LM26420X/Y V
LM26420X V
LM26420Y V
All Options V
IN
IN
IN
IN
IN
VIN = 5V unless otherwise indicated under the Conditions column.
Falling
= 3V to 5.5V
Rising
= 3.3V
= 3.3V
4
Conditions
Operating Ratings
Junction Temperature
Storage Temperature
Soldering Information
(15 sec)
V
Junction Temperature
Infrared or Convection Reflow
IN
EN
FB
FB
EN
FB
FB
FB
= 0.7
= 0.7
= 0V
= 0V
= 0.9
= 0.7
= 0.9
(Note
0.788
1.85
0.97
Min
160
848
656
2.0
0.4
2.4
0.4
86
90
2)
0.800
2.628
0.05
0.40
0.55
91.5
0.75
1.04
0.15
0.05
11.0
Typ
-0.7
330
300
150
180
925
710
2.3
2.2
3.3
5.0
3.3
4.7
0.9
3.7
0.1
98
75
70
55
45
40
40
J
) range of -40°C to
−40°C to +125°C
−65°C to +150°C
0.812
1,008
Max
2.90
2.65
1.12
15.0
100
135
135
100
200
791
0.7
5.0
6.2
1.5
7.5
80
3V to 5.5V
150°C
220°C
Units
MHz
%/V
kHz
mV
mΩ
mΩ
mV
mV
mV
mV
mA
mA
nA
µA
nA
µA
µA
%
V
V
V
A
A
V
°