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参数资料
| 型号： | L5970D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 2.25 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOP-8 |
| 文件页数： | 13/16页 |
| 文件大小： | 274K |
| 代理商： | L5970D |
Electrical characteristics
L5970D
6/16
Io sink
Sink output current
VCOMP = 1.9V;
VFB = 1.5V
11.5
mA
Ib
Source bias current
2.5
4
A
DC open loop gain
RL = ∞
50
65
dB
gm
Transconductance
Icomp = -0.1mA to
0.1mA
VCOMP = 1.9V
2.3
mS
Sync function
High input voltage
VCC = 4.4V to 36V
2.5
VREF
V
Low input voltage
VCC = 4.4V to 36V
0.74
V
Slave sink current
Vsync = 0.74V
(2)
Vsync = 2.33V
0.11
0.21
0.25
0.45
mA
Master output
amplitude
Isource = 3mA
2.75
3
V
Output pulse width
no load,
Vsync = 1.65V
0.20
0.35
s
Reference section
Reference voltage
3.234
3.3
3.366
V
IREF = 0 to 5mA
VCC = 4.4V to 36V
(1)
3.2
3.3
3.399
V
Line regulation
IREF = 0mA
VCC = 4.4V to 36V
510
mV
Load regulation
IREF = 0 to 5mA
8
15
mV
Short circuit current
10
18
30
mA
1.
Specification Referred to TJ from -40 to 125°C. Specification over the -40 to +125 TJ Temperature range
are assured by design, characterization and statistical correlation.
2.
Guaranteed by design.
Table 4. Electrical characteristics (continued)
( TJ = 25°C, VCC = 12V, unless otherwise specified)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
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