參數(shù)資料
型號(hào)： 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(yè)數(shù)： 30/32頁(yè)
文件大?。?/td> 2504K
代理商： LM3311SQ-HIOP/NOPB
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
UVP
Undervoltage Protection
Threshold
On Threshold (Switch On)
2.5
2.4
V
Off Threshold (Switch Off)
2.3
2.1
I
FREQ
FREQ Pin Current
FREQ = V
IN = 2.5V
2.7
13.5
A
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 and AVIN = 8V.
Operational Amplifier
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
V
OS
Input Offset Voltage
Buffer configuration, V
O =
AV
IN/2, no load
5.7
15
mV
Buffer configuration, V
O =
AV
IN/2, no load (HIOP version)
5.7
16
I
B
Input Bias Current (POS Pin)
Buffer configuration, V
O =
AV
IN/2, no load (Note 9)
200
550
nA
V
OUT Swing
Buffer, R
L=2k, VO min.
0.001
0.03
V
Buffer, R
L=2k, VO max.
7.9
7.97
AV
IN
Supply Voltage
4
14
V
Is+
Supply Current
Buffer, V
O = AVIN/2, No Load
1.5
7.8
mA
Buffer, V
O = AVIN/2, No Load
(HIOP version)
2.5
9
I
OUT
Output Current
Source
90
138
195
mA
Sink
105
135
175
Source (HIOP version)
140
215
270
Sink (HIOP version)
175
205
260
SR
Slew Rate
C
L = 10pF (Note 10)
50
V/s
GBW
Gain Bandwidth
-3dB, C
L = 100pF
3.3
MHz
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.
Gate Pulse Modulation
Symbol
Parameter
Conditions
Min
(Note 5)
Typ
(Note 6)
Max
(Note 5)
Units
VFLK
VFLK Voltage Levels
Rising edge threshold
1.4
V
Falling edge threshold
0.4
VDPM
VDPM Voltage Levels
Rising edge threshold
1.4
V
Falling edge threshold
0.4
V
DD(TH)
V
DD Threshold
VGHM = 30V
2.8
3
3.3
V
VGHM = 5V
0.4
0.5
0.7
I
VFLK
VFLK Current
VFLK = 1.5V
4.8
11
A
VFLK = 0.3V
1.1
2.5
I
VDPM
VDPM Current
VDPM = 1.5V
4.8
11
A
VDPM = 0.3V
1.1
2.5
I
VGH
VGH Bias Current
VGH = 30V, VFLK High
59
300
A
VGH = 30V, VFLK Low
11
35.5
7
www.national.com
LM3311
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LM3311SQ-HIOP 2.6 A SWITCHING REGULATOR, 1280 kHz SWITCHING FREQ-MAX, QCC24
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