參數(shù)資料
型號(hào)： LM2710MTX-ADJ/NOPB
廠(chǎng)商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： 1.4 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO20
封裝： TSSOP-20
文件頁(yè)數(shù)： 17/20頁(yè)
文件大?。?/td> 853K
代理商： LM2710MTX-ADJ/NOPB
Electrical Characteristics
Specifications in standard type face are for T
J = 25C and those with boldface type apply over the full Operating Tempera-
ture Range (T
J = 40C to +125C). Unless otherwise specified, VIN =2.2V and Vs+ = 8V, Rox = 50
, Cox = 1nF.
BUFFERS
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
OS
Input offset voltage
2.5
10
mV
V
os/
T
Offset Voltage Drift
8
V/C
I
B
Input Bias Current
170
800
nA
CMVR
Input Common-mode Voltage
Range
0.05
Vs+-0.05
V
Z
IN
Input Impedance
400
k
C
IN
Input Capacitance
1
pF
I
OUT
Continuous Output Current
Vs+=8V, Source
41
59
71
mA
Vs+=8V, Sink
65
53
36
Vs+=12V, Source
50
71
85
Vs+=12V, Sink
75
61
42
V
OUT Swing
R
L=10k, Vo min.
0.075
V
R
L=10k, Vo max.
7.88
R
L=2k, Vo min.
0.075
R
L=2k, Vo max.
7.865
A
VCL
Voltage Gain
R
L =2 k
R
L=10 k
0.995
0.9985
0.998
0.9999
V/V
NL
Gain Linearity
R
L =2 k
, Buffer input=0.5 to
(Vs+-0.5V)
0.01
%
Vs+
Supply Voltage
412
V
PSRR
Power Supply Rejection
Ratio
Vs+=4to12V
90
316
V/V
Is+
Supply Current/Amplifier
Vo = Vs+/2, No Load
1
2
mA
SR
Slew Rate
10
V/s
BW
Bandwidth
-3dB,R
L =10 k
,C
L =10pf
6
MHz
φ 0
Phase Margin
50
Deg
Note 1: The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal resistance, θJA,
and the ambient temperature, TA. See the Electrical Characteristics table for the thermal resistance of various layouts. The maximum allowable power dissipation
at any ambient temperature is calculated using: PD (MAX) = (TJ(MAX) TA)/θJA. Exceeding the maximum allowable power dissipation will cause excessive die
temperature, and the regulator will go into thermal shutdown.
Note 2: Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended to
be functional, but device parameter specifications may not be guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5k
resistor into each pin. The machine model is a 200pF capacitor discharged
directly into each pin.
Note 4: All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100%
production tested or guaranteed through statistical analysis. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality
Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 5: Typical numbers are at 25C and represent the most likely norm.
Note 6: Duty cycle affects current limit due to ramp generator. See Switch Current Limit vs. VIN and Switch Current Limit vs. Temperature graphs in the Typical
Performance Characteristics section.
Note 7: See Typical Performance Characteristics section for Tri-Temperature data for RDSON vs. VIN.
Note 8: Bias current flows into FB pin.
LM2710
www.national.com
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