參數(shù)資料
型號(hào): L5970D013TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: 2.25 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOP-8
文件頁(yè)數(shù): 12/16頁(yè)
文件大?。?/td> 274K
代理商: L5970D013TR
L5970D
Electrical characteristics
5/16
3
Electrical characteristics
Table 4. Electrical characteristics
( TJ = 25°C, VCC = 12V, unless otherwise specified)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
VCC
Operating input
voltage range
Vo = 1.235V; Io = 2A
(1)
4.4
36
V
RDS(on)
Mosfet on
Resistance
(1)
0.250
0.5
Il
Maximum limiting
current
VCC = 4.4V to 36V
1.5
1.87
2.25
A
fs
Switching frequency
(1)
212
250
280
KHz
225
250
275
KHz
Duty cycle
0
100
%
Dynamic characteristics (see test circuit ).
V5
Voltage feedback
4.4V < VCC < 36V,
20mA < IO < 2A
1.220
1.235
1.25
V
(1)
1.198
1.235
1.272
V
h
Efficiency
VO = 5V, VCC = 12V
90
%
DC characteristics
Iqop
Total operating
quiescent current
(1)
35
mA
Iq
Quiescent current
Duty cycle = 0;
VFB = 1.5V
2.5
mA
Iqst-by
Total stand-by
quiescent current
Vinh > 2.2V
(1)
50
100
A
VCC = 36V;
Vinh > 2.2V
(1)
80
150
A
Inhibit
INH threshold
voltage
Device ON
0.8
V
Device OFF
2.2
V
Error amplfier
VOH
High level output
voltage
VFB = 1V
3.5
V
VOL
Low level output
voltage
VFB = 1.5V
0.4
V
Io source
Source output
current
VCOMP = 1.9V;
VFB = 1V
200
300
A
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