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LM3475MF датащи(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали LM3475MF
подробное описание детали  Hysteretic PFET Buck Controller
PDF  14 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3475MF датащи(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
−0.3V to 16V
PGATE
−0.3V to 16V
FB
−0.3V to 5V
EN
−0.3V to 16V
Storage Temperature
−65˚C to 150˚C
Power Dissipation (Note 2)
440mW
ESD Susceptibilty
Human Body Model (Note 3)
2.5kV
Lead Temperature
Vapor Phase (60 sec.)
Infared (15 sec.)
215˚C
220˚C
Operating Ratings (Note 1)
Supply Voltage
2.7V to 10V
Operating Junction
Temperature
−40˚C to +125˚C
Electrical Characteristics
Specifications in Standard type face are for T
J = 25˚C, and in bold type face apply over the full Operating Temperature
Range (T
J = −40˚C to +125˚C). Unless otherwise specified, VIN = EN = 5.0V. Datasheet min/max specification limits are guar-
anteed by design, test, or statistical analysis.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
I
Q
Quiescent Current
EN = V
IN (PGATE
Open)
170
260
320
µA
EN=0V
4
7
10
V
FB
Feedback Voltage
0.788
0.8
0.812
V
%
∆V
FB/
∆V
IN
Feedback Voltage
Line Regulation
2.7V < V
IN < 10V
0.01
%/V
V
HYST
Comparator
Hysteresis
2.7V < V
IN < 10V
−40˚C to +125˚C
21
21
28
32
mV
I
FB
FB Bias Current
50
600
nA
Vth
EN
Enable Threshold
Voltage
Increasing
1.2
1.5
1.8
V
Hysteresis
365
mV
I
EN
Enable Leakage
Current
EN = 10V
.025
1
µA
R
PGATE
Driver Resistance
Source
I
SOURCE = 100mA
2.8
Ω
Sink
I
Sink = 100mA
1.8
I
PGATE
Driver Output Current
Source
V
PGATE = 3.5V
C
PGATE = 1nF
0.475
A
Sink
V
PGATE = 3.5V
C
PGATE = 1nF
1.0
T
SS
Soft-Start Time
2.7V < V
IN < 10V
(EN Rising)
4ms
T
ONMIN
Minimum On-Time
PGATE Open
180
ns
V
UVD
Under Voltage
Detection
Measured at the FB
Pin
0.487
0.56
0.613
V
www.national.com
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