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LM2706TLX Fiches technique(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM2706TLX
Description  Miniature, Variable, Step-Down DC-DC Converter with Bypass for RF Power Amplifiers
Download  15 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2706TLX Fiches technique(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.
Supply Voltage, PV
IN,VDD to SGND
−0.2V to +6V
PGND to SGND
−0.2V to +0.2V
EN, FB, BYP, ABD, V
CON
(SGND −0.2V) to
(V
DD +0.2V)
SW
(PGND −0.2V) to
(V
DD +0.2V)
PV
IN to VDD
−0.2V to +0.2V
Storage Temperature Range
−45˚C to +150˚C
Lead Temp. (Soldering, 10 sec)
260˚C
Junction Temperature (Note 2)
+125˚C
Minimum ESD Rating
±2kV
(Human Body Model, C = 100 pF, R = 1.5 k
Ω)
Thermal Resistance (
θ
JA) (Note 3)
137˚C/W
Electrical Characteristics
Specifications with standard typeface are for T
A =TJ = 25˚C, and those in boldface type apply over the full Operating Tem-
perature Range of T
A =TJ = −25˚C to +85˚C. Unless otherwise specified, PVIN =VDD = EN = 3.6V, BYP = ABD = VCON = 0V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
IN
Input Voltage Range (Note 4)
PV
IN =VDD =VIN
2.7
3.6
5.5
V
V
FB, MIN
Regulated feedback voltage at
minimum setting
V
CON =0V
T
A = 25˚C
1.47
1.50
1.53
V
V
FB, MIN
Regulated feedback voltage at
minimum setting
V
CON =0V
1.455
1.50
1.545
V
V
FB, MAX
Regulated feedback voltage at
maximum setting
V
CON = 1.70V
T
A = 25˚C
3.185
3.25
3.315
V
V
FB, MAX
Regulated feedback voltage at
maximum setting
V
CON = 1.70V
3.15
3.25
3.35
V
OVP
Over-Voltage protection Threshold
V
CON = 0V (Note 5)
260
350
445
mV
V
BYPASS−
Auto Bypass Detection Threshold
V
CON = 1.7V (Note 6)
160
275
390
mV
V
BYPASS+
Auto Bypass Detection Threshold
V
CON = 1.7V (Note 6)
310
440
570
mV
I
SHDN
Shutdown Supply Current
EN = ABD = BYP = SW = FB = 0V
T
A = 25˚C (Note 7)
0.1
1
µA
I
SHDN
Shutdown Supply Current
EN = ABD = BYP = SW = FB = 0V
T
A = 55˚C (Note 7)
0.45
2
µA
I
SHDN
Shutdown Supply Current
EN = ABD = BYP = SW = FB = 0V
T
A = 85˚C (Note 7)
6
25
µA
I
Q1_PWM
DC Bias Current into V
DD
FB = 2V, No-Load, V
CON = 0V
1.4
1.8
mA
I
Q2_BYPASS
V
IN = BYP = 3.6V,
No-Load, V
CON =0V
1.45
1.8
R
DSON(P)
Pin-Pin Resistance for P FET
260
500
m
R
DSON(N)
Pin-Pin Resistance for N FET
200
500
m
R
DSON(BYP)
Pin-Pin Resistance for Bypass
FET
105
200
m
I
LIM, PFET
Switch Peak Current Limit
(Note 8)
550
650
750
mA
I
LIM, BYPASS
Bypass FET Peak Current Limit
(Note 8)
480
650
930
mA
F
OSC
Internal Oscillator Frequency
500
600
700
kHz
V
IH
Logic High Input, EN, BYP, ABD
1.2
V
V
IL
Logic Low Input, EN, BYP, ABD
0.5
V
I
PIN
Pin Pull Down Current, EN, BYP,
ABD
EN, BYP, ABD = 3.6V
5
10
µA
V
CON,MIN
V
CON Threshold Commanding
V
FB,MIN
PWM Mode, V
CON Swept Down
0.55
0.6
0.65
V
V
CON,MAX
V
CON Threshold Commanding
V
FB,MAX
PWM Mode, V
CON Swept Up
1.5
1.6
1.7
V
Z
CON
V
CON Input Resistance
100
k
www.national.com
3


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