LM2853-1.8EVAL National Semiconductor, LM2853-1.8EVAL Datasheet - Page 3

• Manufacturer Part Number: LM2853-1.8EVAL
• Description: BOARD EVAL LM2853-1.8
• Manufacturer: National Semiconductor
• Series: PowerWise®, SIMPLE SWITCHER®r

Specifications of LM2853-1.8EVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.8V
• Current - Output: 3A
• Voltage - Input: 3 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 550kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2853
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

SYSTEM PARAMETERS
V
∆V
∆V
V
R
R
R
I
I
I
R
PWM
f
D
ENABLE CONTROL (Note 4)
V
V
I
CL
Q
SD
osc
EN
OUT
ON
IH
IL
DS(ON)-P
DS(ON)-N
SS
SNS
range
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
type apply over the full Junction Temperature Range (−40˚C to 125˚C). Minimum and Maximum limits are guaranteed through
test, design or statistical correlation. Typical values represent the most likely parametric norm at T
for reference purposes only. Unless otherwise specified AVIN = PVIN = 5V.
AVIN, PVIN, EN, SNS, SW, SS
ESD Susceptibility (Note 2)
Power Dissipation
Storage Temperature Range
Maximum Junction Temp.
OUT
OUT
Symbol
/∆AVIN
/∆I
O
Voltage Tolerance (Note 3)
Line Regulation (Note 3)
Load Regulation
UVLO Threshold (AVIN)
PFET On Resistance
NFET On Resistance
Soft-Start Resistance
Peak Current Limit Threshold
Operating Current
Shutdown Quiescent Current
Sense Pin Resistance
Switching Frequency
Duty Cycle Range
EN Pin Minimum High Input
EN Pin Maximum Low Input
EN Pin Pullup Current
Parameter
Internally Limited
−65˚C to +150˚C
Specifications with standard typeface are for T
−0.3V to 6.0V
(Note 1)
V
V
V
V
V
V
V
V
V
1.8V or 2.5V
3.0V ≤ AVIN ≤ 5.5V
V
3.5V ≤ AVIN ≤ 5.5V
Normal operation
Rising
Falling Hysteresis
Isw = 3A
Isw = 3A
Non-switching
EN = 0V
.
EN = 0V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
150˚C
= 0.8V option
= 1.0V option
= 1.2V option
= 1.5V option
= 1.8V option
= 2.5V option
= 3.0V option
= 3.3V option
= 0.8V, 1.0V, 1.2V, 1.5V,
= 3.0V or 3.3V
2kV
Conditions
3
Operating Ratings
14-Pin Exposed Pad TSSOP Package
Soldering (10 sec)
PVIN to GND
AVIN to GND
Junction Temperature
Infrared (15 sec)
Vapor Phase (60 sec)
0.9775
1.1730
1.4663
1.7595
2.4437
2.9325
3.2257
0.782
Min
325
3.6
50
75
0
J
= 25˚C, and those in bold face
2.47
0.85
Typ
155
450
432
550
0.8
1.0
1.2
1.5
1.8
2.5
3.0
3.3
0.2
0.2
1.5
J
40
32
12
(Note 1)
2
5
= 25˚C and are provided
1.0225
1.5337
1.8405
2.5563
3.0675
3.3743
0.818
1.227
−40˚C to +125˚C
Max
260
120
100
725
100
1.1
1.1
3.0
50
25
2
1.5V to 5.5V
3.0V to 5.5V
www.national.com
220˚C
215˚C
260˚C
Units
mV/A
AVIN
AVIN
% of
% of
kHz
mΩ
mΩ
mV
mA
kΩ
µA
kΩ
µA
%
%
%
V
V
A