FSP3127 Datasheet, PDF (2/8 Pages) FOSLINK SEMICONDUCTOR CO.,LTD – 150KHZ 500MA STEP DOWN VOLTAGE REGULATOR

150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
„ OPERATING CONDITIONS
Parameter
Symbol
Input Voltage
V_IN
Junction Temperature
T_J
Test Conditions
FSP3127
Min. Typ. Max. Unit
4.5
40
V
-40
+125 °C
„ ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test Conditions
Feedback Bias Current
I_FB
V_FB = 1.3V
(Adjustable Version Only)
Oscillator Frequency
Short Circuit Oscillator
Frequency
F_osc
F_CSP
No Outside Circuit ,
V_FB = 0V force drive on
When Current Limit Occur and
V_FB ＜ 0.5V, T_A=25°C
Saturation Voltage
V_SAT
I_OUT= 0.5A,
Maximum Duty Cycle(On)
DC
Minimum Duty Cycle(Off)
Current Limit
I_CL
Output=0
Output
Leakage
I_L
Output=1
Current
Quiescent Current
I_Q
V_FB = 0V force drive on
V_FB =12V force drive off
Peak Current
No Outside Circuit ,
V_FB = 0V force drive on
No Outside Circuit ,
V_FB = 12V force drive off
V_IN = 40V
V_FB = 12V force drive off
Standby Quiescent Current I_STBY
ON/OFF Pin=5V,V_IN = 40V
ON/OFF Pin Logic Input
V_IL
Threshold Voltage
V_IH
ON/OFF Pin Input Current
I_L
ON/OFF Pin Logic Input
Current
I_H
Thermal Resistance
θ_JA
Output
Feedback
V_FB
FSP3127-ADJ
Low (Regulator ON)
High (Regulator OFF)
V_LOGIC=0.5V(ON)
V_LOGIC=2.5V(OFF)
SOP8L Junction to Ambient
PDIP8L Junction to Ambient
4.5V ≤V_IN ≤40V
0.1A ≤I_LOAD ≤0.5A
V_OUT Programmed for 3V
Min.
127
110
10
0.65
0.58
2.0
1.193
1.18
Typ.
10
150
30
0.9
100
0
0.8
2
2
5
85
1.3
0.02
5
150
95
1.23
Max.
50
100
173
173
50
1.1
1.2
1.3
1.4
50
15
10
200
250
0.6
5
15
1.267
1.28
Efficiency
η
V_IN =12V, I_LOAD= 0.5A
80
Output
Feedback
V_FB
FSP3127-3.3V
Efficiency
η
4.5V ≤V_IN ≤40V
0.1A ≤I_LOAD ≤0.5A
V_IN =12V, I_LOAD= 0.5A
3.168
3.135
3.3
3.432
3.465
80
Output
Feedback FSP3127-5.0V
V_FB
Efficiency
η
7V ≤V_IN ≤40V
0.2=1A ≤I_LOAD ≤2=0.5A
V_IN =12V, I_LOAD= 2=0.5A
4.8
4.75
5
5.2
5.25
82
Output
Feedback FSP3127-12V
V_FB
15V ≤V_IN ≤40V
0.1A ≤I_LOAD ≤0.5A
11.52
12
11.4
12.48
12.6
Efficiency
η
V_IN =12V, I_LOAD= 0.5A
88
Specifications with boldface are for full operating temperature range, the other type are for T_J=25°C
Unit
nA
kHz
kHz
V
%
A
µA
mA
mA
µA
V
µA
℃/W
V
%
V
%
V
%
V
%
2/8
2007-4-9