L5971 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L5971' PDF : 11 Pages View PDF
L5971
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
DC Characteristics
Iqop
Total operating quiescent
current
Iq
Quiescent current
Iqst-by
Total stand-by quiescent
current
Error Amplifier
VFB
Voltage Feedback Input
RL
Line regulation
Ref. voltage stability vs
temperature
VoH
High level output voltage
VoL
Low level output voltage
Io source Source output current
Io sink
Sink output current
Ib
Source bias current
SVRR E/A Supply voltage ripple rejection
DC open loop gain
gm
Transconductance
Oscillator Section
Ramp Valley
Ramp peak
Maximum duty cycle
Maximum Frequency
Pin 5 (Pin 11)
Duty Cycle = 0; VFB = 1.7V
Vinh <0.9V
Vcc = 25V; Vinh <0.9V
Vcc = 6.5 to 25V
VFB = 0.8V
VFB = 1.7V
Vcomp = 3V; VFB = 0.8V
Vcomp = 3V; VFB = 1.7V
Vcomp = Vfb; Vcc = 6.5 to 25V
RL = ∞
Icomp = -0.1 to 0.1mA
Vcomp = 6V
Vcc = 6.5V
Vcc = 25V
Duty Cycle = 0%
Rosc = 13kΩ, Cosc = 820pF
Min.
1.247
*
8.7
180
200
60
50
0.74
1.80
4.72
95
Typ.
3
2.8
100
150
1.26
5
0.4
250
300
2
80
57
4.3
0.81
1.87
4.79
97
Max. Unit
4.5 mA
3.5 mA
200 µA
300 µA
1.273
10
V
mV
mV/°C
V
0.65
V
µA
µA
3
µA
dB
dB
mS
0.88
V
1.94
V
4.86
V
%
500 kHz
4/11
Share Link: 
