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參數(shù)資料
| 型號： | NCP1521ASNT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | LEAD FREE, TSOP-5 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大小： | 166K |
| 代理商： | NCP1521ASNT1G |
NCP1521
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(Typical values are referenced to T
A
= +25
°
C, Min and Max values are referenced 40
°
C to
+85
°
C ambient temperature, unless otherwise noted, operating conditions V
IN
= 3.6 V, V
OUT
= 1.8 V, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Input Voltage Range
V
IN
2.7
5.5
V
Undervoltage Lockout (V
IN
Falling)
V
UVLO
2.3
2.5
2.6
V
Quiescent Current
PFM No Load
I
q
30
45
A
Standby Current, EN Low
Istb
0.3
1.2
A
Oscillator Frequency
F
osc
1.3
1.5
1.8
MHz
Peak Inductor Current
I
LIM
1200
mA
Feedback Reference Voltage
V
ref
0.6
V
FB Pin Tolerance Overtemp @ I
out
= 100 mA
VFBtol
3.0
3.0
%
Reference Voltage Line Regulation
VFB
0.1
%
Output Voltage Accuracy @ I
out
= 100 mA (Note 5)
V
OUT
3%
Vnom
+3%
V
Minimum Output Voltage
V
OUT
0.9
V
Maximum Output Voltage
V
OUT
3.3
V
Output Voltage Line Regulation (V
in
= 2.7–5.5)
Io = 100 mA
V
OUT
0.1
%
Voltage Load Regulation
(IO = 100 mA to 300 mA)
(IO = 100 mA to 600 mA)
V
LOADREG
0.0005
0.001
%/mA
%/mA
Load Transient Response (300 mA to 600 mA Load Step, Trise 10 s)
V
OUT
50
mV
Duty Cycle
100
%
PCh OnResistance
RLxH
300
m
NCh OnResistance
RLxL
300
m
PCh Leakage Current
ILeakH
0.05
A
NCh Leakage Current
ILeakL
0.01
A
Enable Pin High
VENH
1.2
V
Enable Pin Low
VENL
0.4
V
EN << H >> Input Current, EN = 3.6 V
IENH
2.0
A
SoftStart Time
T
start
350
500
s
Thermal Shutdown Threshold
T
SD
160
°
C
Thermal Shutdown Hysteresis
T
SDH
25
°
C
5. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).
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|---|---|
| NCP1521B | 制造商:ON 功能描述:1.5 MHz, 600 mA Step-Down DC-DC Converter |
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| NCP1521BSNT1G | 功能描述:直流/直流開關轉換器 STEP DWN DCDC CNVRTR 1.5MHz 600mA RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1521UEVB | 功能描述:電源管理IC開發(fā)工具 ANA EVAL BRD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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