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參數(shù)資料
| 型號(hào)： | NCP1511 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter |
| 中文描述： | 多達(dá)500個(gè)，高效率同步降壓毫安型DC - DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 162K |
| 代理商： | NCP1511 |
NCP1511
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
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
V
out
1.833
1.890
1.947
V
Load Transient Response
10 to 100 mA Load Step
V
out
35
mV
Line Transient Response, I
out
= 100 mA
3.0 to 3.6 Vin Line Step
V
out
10
mVpp
PWM Mode with Internal Oscillator Characteristics
Switching PFET Current Limit
I lim
800
mA
Minimum On Time
Ton min
75
nsec
Internal Oscillator Frequency
Fosc
700
900
1200
kHz
Rdson Switching PFET and N_FET
Rdson
0.23
Switching PFET and NFET Leakage Current
Ileak
0
1.0
A
Output Overvoltage Threshold
Vo
5.0
%
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
V
out
1.833
1.890
1.947
V
Load Transient Response
10 to 100 mA Load Step
V
out
35
mV
Line Transient Response, I
out
= 100 mA
3.0 to 3.6 Vin Line Step
V
out
10
mVpp
Pulsed Mode Characteristics
On Time
Ton
660
nsec
Output Ripple Voltage, I
out
= 100 A
V
out
22
mV
Feedback Voltage Accuracy, V
out
Set = 1.0 V CB0 = L, CB1 = L
V
out
0.930
1.000
1.070
V
Feedback Voltage Accuracy, V
out
Set = 1.3 V CB0 = L, CB1 = H
V
out
1.241
1.300
1.359
V
Feedback Voltage Accuracy, V
out
Set = 1.5 V CB0 = H, CB1 = H
V
out
1.430
1.500
1.570
V
Feedback Voltage Accuracy, V
out
Set = 1.89 V CB0 = H CB1 = L
V
out
1.813
1.890
1.967
V
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