參數(shù)資料
型號: L5985TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 3 X 3 MM, 1.08 MM HEIGHT, LEAD FREE, VFQFPN-8
文件頁數(shù): 33/37頁
文件大?。?/td> 856K
代理商: L5985TR
L5985
Electrical characteristics
Doc ID 13006 Rev 5
5/37
3
Electrical characteristics
TJ = 25 °C, VCC = 12 V, unless otherwise specified.
Table 4.
Electrical characteristics
Symbol
Parameter
Test condition
Values
Unit
Min
Typ
Max
VCC
Operating input voltage
range
(1)
2.9
18
V
VCCON
Turn on VCC threshold
(1)
2.9
VCCHYS
VCC UVLO hysteresis
(1)
0.175
0.3
RDS(on)
MOSFET on resistance
140
170
m
Ω
(1)
140
220
ILIM
Maximum limiting current
2.5
2.9
3.3
A
Oscillator
FSW
Switching frequency
225
250
275
kHz
(1)
220
275
VFSW
FSW pin voltage
1.254
V
D
Duty cycle
0
100
%
FADJ
Adjustable switching
frequency
RFSW = 33 kΩ
1000
kHz
Dynamic characteristics
VFB
Feedback voltage
2.9 V < VCC < 18 V
(1)
0.593
0.6
0.607
V
DC characteristics
IQ
Quiescent current
Duty cycle = 0,
VFB = 0.8 V
2.4
mA
IQST-BY
Total stand-by quiescent
current
20
30
μA
Inhibit
INH threshold voltage
Device ON level
0.6
V
Device OFF level
1.9
INH current
INH = 0
7.5
10
μA
Soft-start
TSS
Soft-start duration
FSW pin floating
7.4
8.2
9.1
ms
FSW = 1 MHz,
RFSW = 33 kΩ
2
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