参数资料
型号: L5988D
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 5.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装: LEAD FREE, HTSSOP-16
文件页数: 52/52页
文件大小: 1858K
代理商: L5988D
L5988D
Electrical characteristics
Doc ID 15324 Rev 3
9/52
4
Electrical characteristics
VCC = 12 V, TJ = 25 °C unless otherwise specified.
Table 4.
Electrical characteristic
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
VCC
Operating input voltage
range
Vout = 0.6 V; Iout=3 A
2.9
18
V
RDS(on) HS
High side MOSFET on
resistance
Iout=1.0 A
75
85
95
m
Ω
(1)
111
120
132
m
Ω
RDS(on) LS
Low side MOSFET on
resistance
Iout=1.0 A
62
67
72
m
Ω
(1)
92
100
106
m
Ω
IL HIGH SIDE
Maximum peak limiting
current
ILIM-ADJ = float
3.6
4
4.4
A
IL LOW SIDE
Maximum valley limiting
current
ILIM-ADJ = float
4.14
4.6
5.06
A
fSW
Switching frequency
FSW = floating
360
400
440
kHz
fSW ADJ
adjusted switching
frequency
RFSW PULL DWN = 27 kΩ
1000
kHz
D
Duty cycle
0
100
%
Selectable under voltage lock-out (UVLO)
3.3 V BUS
Turn ON Vcc threshold
2.7
2.8
V
Turn OFF Vcc threshold
2.4
2.5
V
Hysteresis
200
mV
12 V BUS
Turn ON Vcc threshold
8
8.6
V
Turn OFF Vcc threshold
6.8
7
V
Hysteresis
1
V
DC characteristic
ISS
Soft-start current
VSS/INH = 2 V
22
μA
VSS/INH = 0
5
μA
INH
Device ON level
0.8
V
Device OFF level
0.3
V
Iq
Quiescent current
Duty Cycle = 0;
VFB = 1 V
3mA
Iq st-by
Total stand-by quiescent
current
35
μA
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