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參數(shù)資料
型號： NCP1508MNR2
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package
中文描述： 0.8 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, DFN-10
文件頁數(shù)： 5/15頁
文件大小： 414K
代理商： NCP1508MNR2
NCP1508
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (continued)
(V
in
= 3.6 V, Vo = 1.5 V, T
A
= 25
°
C, Fsyn = 600 kHz 50% Duty Cycle square wave
for PWM mode; T
A
= –30 to 85
°
C for Min/Max values, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SYNC PWM Mode Characteristics (continued)
Feedback Voltage Accuracy, V
out
Set = 1.0 V CB0 = L, CB1 = L, I
out
= 300 mA
V
out
0.950
1.000
1.050
V
Feedback Voltage Accuracy, V
out
Set = 1.3 V CB0 = L, CB1 = H, I
out
= 300 mA
V
out
1.261
1.300
1.339
V
Feedback Voltage Accuracy, V
out
Set = 1.5 V, CB0 = H, CB1 = H, I
out
= 300 mA
V
out
1.450
1.500
1.550
V
Feedback Voltage Accuracy, V
out
Set = 1.89 V, CB0 = H, CB1 = L, I
out
= 300 mA
V
out
1.833
1.890
1.947
V
Line Regulation, V
in
= 2.7 V
3.6 V, I
out
= 100 mA
15
+15
mV
Line Regulation, V
in
= 3.6 V
5.2 V, I
out
= 100 mA
15
+15
mV
Load Regulation, I
out
= 100 mA
300 mA
15
+15
mV
Load Transient Response, 10 to 100 mA Load Step
V
out
50
mV
Line Transient Response, I
out
= 100 mA, 3.0 to 3.6 V
in
Line Step
V
out
5.0
mVpp
PWM Mode with Internal Oscillator Characteristics
Switching P
FET Current Limit
I
lim
800
mA
Duty Cycle (Note 2)
DC
100
%
Minimum On Time
T
on(min)
75
nsec
Internal Oscillator Frequency
T
A
= 25
°
C
–30
°
C
≤
T
A
≤
85
°
C
Fosc
760
700
980
980
1240
1240
kHz
R
DS(on)
Switching P
FET and N_FET
R
DS(on)
0.23
Switching P
FET and N
FET Leakage Current
I
leak
0
10
A
Output Overvoltage Threshold
Vo
5.0
%
Feedback Voltage Accuracy, V
out
Set = 1.0 V, CB0 = L, CB1 = L,
I
out
= 300 mA
V
out
0.950
1.000
1.050
V
Feedback Voltage Accuracy, V
out
Set = 1.3 V, CB0 = L, CB1 = H,
I
out
= 300 mA
V
out
1.261
1.300
1.339
V
Feedback Voltage Accuracy, V
out
Set = 1.5 V, CB0 = H, CB1 = H,
I
out
= 300 mA
V
out
1.450
1.500
1.550
V
Feedback Voltage Accuracy, V
out
Set = 1.89 V, CB0 = H CB1 = L,
I
out
= 300 mA
V
out
1.833
1.890
1.947
V
Line Regulation, V
in
= 2.7 V
3.6 V, I
out
= 100 mA
15
+15
mV
Line Regulation, V
in
= 3.6 V
5.2 V, I
out
= 100 mA
15
+15
mV
Load Regulation, I
out
= 100 mA
300 mA
15
+15
mV
Load Transient Response, 10 to 100 mA Load Step
V
out
50
mV
Line Transient Response, I
out
= 100 mA, 3.0 to 3.6 V
in
Line Step
V
out
5.0
mVpp
Pulsed Mode Characteristics
Peak Current Limit
I
lim
200
mA
Output Current
I
out
0.05
30
mA
Output Ripple Voltage, I
out
= 100 A
V
out
22
100
mV
Feedback Voltage Accuracy, V
out
Set = 1.0 V, CB0 = L, CB1 = L
V
out
0.950
1.000
1.050
V
Feedback Voltage Accuracy, V
out
Set = 1.3 V, CB0 = L, CB1 = H
V
out
1.261
1.300
1.339
V
Feedback Voltage Accuracy, V
out
Set = 1.5 V, CB0 = H, CB1 = H
V
out
1.450
1.500
1.550
V
Feedback Voltage Accuracy, V
out
Set = 1.89 V, CB0 = H, CB1 = L
2. Maximum value is guaranteed by design.
V
out
1.833
1.890
1.947
V
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