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參數(shù)資料
| 型號： | ZLDO485 |
| 廠商： | Zetex Semiconductor |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; Body Material:Thermoplastic; Series:C016; No. of Contacts:3; Connecting Termination:Screw; Circular Shell Style:Straight Receptacle; Features:Strain Relief with Clamping Ring RoHS Compliant: Yes |
| 中文描述： | 4.85伏超低壓差穩(wěn)壓器 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大小： | 114K |
| 代理商： | ZLDO485 |
ZLDO485
output impedance of the switching power
supply but no higher. The low dropout voltage
of the ZLDO485 allows this circuit technique to
be implemented very effectively, giving a
highly stable and accurate low noise supply.
3). Logic Controlled Power Supply
Fig.3 shows all that is necessary to allow a
microprocessor to control a power supply
based on the ZLDO485 The Shutdown Control
pin (pin 2), is a logic compatible input that
disables the regulator when a voltage in excess
of 1.5V is applied. The current required to drive
this input is less than 10
μ
A. When the regulator
is shutdown in this way, the quiescent current
of the ZLDO485 falls to around 11
μ
A. This
makes the regulator suitable for a wide range
of battery powered applications where
intermittent operation occurs. The shutdown
control pin should not be taken to a voltage
higher than Vin if low quiescent supply current
is important. The shutdown control is a high
impedance input and so if not required, should
be wired to the ground pin (pin 7).
4). Over Temperature Shutdown
The ZLDO485 regulator includes an over
temperature shutdown circuit that disables the
regulator if its chip temperature should exceed
125°C for any reason. Although intended to
provide a limited guard against excessive
internal power dissipation, this circuit will shut
down the regulator if its ambient rises above
125°C. Thus, the regulator could be used to
disable a circuit in the event of the ambient
temperature within which the circuit is
mounted becoming too high. Any internal
power dissipation caused as a result of
supplying load current, will reduce the
ambient temperature at which shutdown
occurs. Note that to achieve the extremely low
dropout voltage and high current performance
provided by the ZLDO485 devices, the parts
can be damaged by sustained output shorts or
excessive loads when combined with high
input supply voltages. To ensure reliable
operation, keep loads within the SOA graph
boundaries Indicated in the typical
characteristics.
APPLICATIONS
Spg
D/C
Vout
LBF
SC
Vin
N/C
Gnd
IC2
C2
C1
C3
0V
+ 4.85V
System
Switched
Output
Supply Input
ViGnd
ZSR500
0V
+ 6.7V
to 20V
Figure 3
4-77
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PDF描述 |
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| ZLDO485T8 | Circular Connector; Body Material:Thermoplastic; Series:C016; No. of Contacts:3; Connecting Termination:Screw; Circular Shell Style:Cable Plug; Features:Strain Relief with Clamping Ring RoHS Compliant: Yes |
| ZLDO500 | Circular Connector; Body Material:Thermoplastic; Series:C016; No. of Contacts:3; Connecting Termination:Screw; Circular Shell Style:Cable Plug; Features:Internal Strain Relief with Clamping Ring; Leaded Process Compatible:Yes RoHS Compliant: Yes |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ZLDO485T8 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:4.85 VOLT ULTRA LOW DROPOUT REGULATOR |
| ZLDO485T8TA | 功能描述:低壓差穩(wěn)壓器 - LDO 4.85V Ultra low Dropout Regulator 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| ZLDO485T8TA-CUT TAPE | 制造商:DIODES 功能描述:ZLDO485 Series 4.85 V 300 mA Ultra Low Dropout Regulator Surface Mount - SM-8 |
| ZLDO485T8TC | 功能描述:IC REG LDO 4.85V .3A SOT-223-8 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| ZLDO500 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:5.0 VOLT ULTRA LOW DROPOUT REGULATOR |
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