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參數(shù)資料
| 型號(hào)： | NCP699SN50T1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 150 mA CMOS Low Iq LDO with Enable in TSOP−5 |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5 |
| 封裝： | LEAD FREE, SC-59, SOT-23, TSOP-5 |
| 文件頁(yè)數(shù)： | 7/9頁(yè) |
| 文件大?。?/td> | 193K |
| 代理商： | NCP699SN50T1G |
NCP699
http://onsemi.com
7
APPLICATIONS INFORMATION
A typical application circuit for the NCP699 series is
shown in Figure 1, front page.
Input Decoupling (C
in
)
A 1.0
F capacitor either ceramic or tantalum is
recommended and should be connected close to the NCP699
package. Higher values and lower ESR will improve the
overall line transient response.
TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C
out
)
The NCP699 is a stable regulator and does not require any
specific Equivalent Series Resistance (ESR) or a minimum
output current. Capacitors exhibiting ESRs ranging from a
few m up to 5.0
can thus safely be used. The minimum
decoupling value is 1.0 F and can be augmented to fulfill
stringent load transient requirements. The regulator accepts
ceramic chip capacitors as well as tantalum capacitors.
Larger values improve noise rejection and load regulation
transient response.
TDK capacitor: C2012X5R1C105K, C1608X5R1A105K,
or C3216X7R1C105K
Enable Operation
The enable pin will turn on the regulator when pulled high
and turn off the regulator when pulled low. These limits of
threshold are covered in the electrical specification section
of this data sheet. If the enable is not used then the pin should
be connected to V
in
.
Hints
Please be sure the Vin and Gnd lines are sufficiently wide.
When the impedance of these lines is high, there is a chance
to pick up noise or cause the regulator to malfunction.
Set external components, especially the output capacitor,
as close as possible to the circuit, and make leads as short as
possible.
Thermal
As power across the NCP699 increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material and also the ambient
temperature effect the rate of temperature rise for the part.
This is stating that when the NCP699 has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
The maximum dissipation the package can handle is
given by:
TJ(max)
PD
TA
RJA
If junction temperature is not allowed above the
maximum 125
°
C, then the NCP699 can dissipate up to
400 mW @ 25
°
C.
The power dissipated by the NCP699 can be calculated
from the following equation:
Ptot
[Vin* Ignd(@Iout)]
or
[Vin
Vout] * Iout
VinMAX
Ptot
Ignd(@Iout)
Vout*Iout
Iout
If an 150 mA output current is needed then the ground
current from the data sheet is 40 A. For an NCP699 (3.0 V),
the maximum input voltage will then be 5.65 V.
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| NCP699 | 150 mA CMOS Low Iq LDO with Enable in TSOP-5(帶有使能端的150mA CMOS, 低Iq LDO) |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| NCP700 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Ultra Low Noise, High PSSR,BiCMOS RF LDO Regulator |
| NCP700B | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:200 mA, Ultra Low Noise, High PSRR, BiCMOS RF LDO Regulator |
| NCP700BMT18TBG | 功能描述:低壓差穩(wěn)壓器 - LDO 200MA ULN RF LDO REG1.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| NCP700BMT28TBG | 功能描述:低壓差穩(wěn)壓器 - LDO 200MA ULN RF LDO REG2.8V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| NCP700BMT30TBG | 功能描述:低壓差穩(wěn)壓器 - LDO 200MA ULN RF LDO REG 3V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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