參數(shù)資料
型號： LM3311SQ-HIOP/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 2.6 A SWITCHING REGULATOR, 1280 kHz SWITCHING FREQ-MAX, QCC24
封裝： LEAD FREE, LLP-24
文件頁數(shù)： 31/32頁
文件大?。?/td> 2504K
代理商： LM3311SQ-HIOP/NOPB
Gate Pulse Modulation
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
R
VGH-VGHM
VGH to VGHM Resistance
20mA Current, VGH = 30V
14
28.5
R
VGHM-RE
VGHM to RE Resistance
20mA Current, VGH = VGHM
= 30V
27
55
R
VGHM(OFF)
VGH Resistance
VDPM is Low, VGHM = 2V
1.2
1.7
k
I
CE
CE Current
CE = 0V
40
57
71
A
V
CE(TH)
CE Voltage Threshold
1.16
1.22
1.30
V
Electrical Characteristics
Specifications in standard type face are for T
J = 25°C and those with boldface type apply over the full Operating Temperature
Range
( T
J = 40°C to +125°C). Unless otherwise specified VIN = LVIN =2.5V.
Low Dropout Linear Regulator (LDO)
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
LV
IN
Input Voltage Range
2.5
7
V
ADJ
ADJ Pin Voltage
LV
IN = 3V and 7V
1.197
1.263
1.289
V
I
ADJ
ADJ Pin Current (Note 9)
28
380
nA
%V
ADJ/ΔVIN
ADJ Voltage Line Regulation
LV
IN = 3V to 7V, LDOOUT =
2.8V, no load
-2.6
0.032
1.4
%
%V
ADJ/ΔIL
LDO
OUT Load Regulation
I
OUT = 10mA to 300mA, LVIN =
3.3V, LDO
OUT = 2.8V
-11.6
2.931
8
%
I
QL
LV
IN Quiescent Current
Device enabled
290
425
A
Device shut down
10.5
V
DO
Dropout Voltage
350mA load, LDO
OUT = 2.8V
218
409
674
mV
V
ADJ(LOW)
V
ADJ Short Circuit Disable
Threshold
LV
IN = 3.3V
0.85
0.9
V
Note 1:
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 2:
Under normal operation the V
C and CE pins may go to voltages above this value. The maximum rating is for the possibility of a voltage being applied to
the pin, however the V
C and CE pins should never have a voltage directly applied to them.
Note 3:
The maximum allowable power dissipation is a function of the maximum junction temperature, T
J(MAX), the junction-to-ambient thermal resistance,
θ
JA, 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: P
D (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 4:
The human body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin per JEDEC standard JESD22-A114.
Note 5:
All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100%
production tested. 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 6:
Typical numbers are at 25°C and represent the most likely norm.
Note 7:
Duty cycle affects current limit due to ramp generator.
Note 8:
Current limit at 0% duty cycle. See TYPICAL PERFORMANCE section for Switch Current Limit vs. V
IN
Note 9:
Bias current flows into pin.
Note 10:
Input signal is overdriven to force the output to swing rail to rail.
www.national.com
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LM3311
相關PDF資料
PDF描述
LM3311SQ-HIOP 2.6 A SWITCHING REGULATOR, 1280 kHz SWITCHING FREQ-MAX, QCC24
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