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參數(shù)資料
| 型號： | NCP1501DMR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual Mode PWM/Linear Buck Converter |
| 中文描述： | 0.8 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 6/14頁 |
| 文件大小： | 161K |
| 代理商： | NCP1501DMR2 |
NCP1501
http://onsemi.com
6
Figure 4. PWM Circuit Schematic
Sync
V
bat
C1
10
C2
10
R3
R4
+
+
Q2
V
ref
ERROR
AMP
Latch
Q
S
REn
+
OCP
Q1
L1
10 H
V
ref
+ 5%
Load
I PFET
R2
R1
COMP
OVP
COMP
Set
Ramp
En
LDO Mode
When the synchronization pulse is not present, the
NCP1501 operates as an LDO. The DC/DC Control
Circuitry will relinquish control of Q1 and turn off Q2. The
LDO Control Circuitry will turn on Q3 as a bypass circuit to
the inductor. Q1 is the controlling pass device of the LDO
that regulates the input to output voltage dropout. The LDO
can source an output current in excess of 50 mA.
Figure 5. LDO Circuit Schematic
Sync
V
bat
C1
10
C2
10
R3
R4
+
V
ref
ERROR
AMP
Switch/Invert
Out
In
En
Q1
L1
10 H
Load
Set
Ramp
En
Q3
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PDF描述 |
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| NCP1501 | Dual Mode PWM/Linear Buck Converter(雙模PWM/線性降壓轉(zhuǎn)換器) |
| NCP1501DMR2G | Dual Mode PWM/Linear Buck Converter |
| NCP1508 | Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package |
| NCP1508MNR2 | Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package |
| NCP1508MNR2G | Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1501DMR2G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Mode Buck w/LDO RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1508MNR2 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 High Efficiency Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1508MNR2G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 High Efficiency Buck Synchronous DC/DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1509MNR2 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 High Efficiency Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1509MNR2G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 High Efficiency Buck Synchronous DC/DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
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