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參數(shù)資料
| 型號(hào)： | LP38841S-0.8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 0.8A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| 中文描述： | 0.8 V FIXED POSITIVE LDO REGULATOR, 0.205 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 595K |
| 代理商： | LP38841S-0.8 |
LP38841
0.8A Ultra Low Dropout Linear Regulators
Stable with Ceramic Output Capacitors
General Description
The LP38841 is a high current, fast response regulator
which can maintain output voltage regulation with minimum
input to output voltage drop. Fabricated on a CMOS process,
the device operates from two input voltages: Vbias provides
voltage to drive the gate of the N-MOS power transistor,
while Vin is the input voltage which supplies power to the
load. The use of an external bias rail allows the part to
operate from ultra low Vin voltages. Unlike bipolar regula-
tors, the CMOS architecture consumes extremely low quies-
cent current at any output load current. The use of an
N-MOS power transistor results in wide bandwidth, yet mini-
mum external capacitance is required to maintain loop sta-
bility.
The fast transient response of these devices makes them
suitable for use in powering DSP, Microcontroller Core volt-
ages and Switch Mode Power Supply post regulators. The
parts are available in TO-220 and TO-263 packages.
Dropout Voltage:
75 mV (typ)
@
0.8A load current.
Quiescent Current:
30 mA (typ) at full load.
Shutdown Current:
30 nA (typ) when S/D pin is low.
Precision Output Voltage:
1.5% room temperature accu-
racy.
Features
n
Ideal for conversion from 1.8V or 1.5V inputs
n
Designed for use with low ESR ceramic capacitors
n
0.8V, 1.2V and 1.5V standard voltages available
n
Ultra low dropout voltage (75mV
@
0.8A typ)
n
1.5% initial output accuracy
n
Load regulation of 0.1%/A (typical)
n
30nA quiescent current in shutdown (typical)
n
Low ground pin current at all loads
n
Over temperature/over current protection
n
Available in 5 lead TO220 and TO263 packages
n
40C to +125C junction temperature range
Applications
n
ASIC Power Supplies In:
- Desktops, Notebooks, and Graphics Cards, Servers
- Gaming Set Top Boxes, Printers and Copiers
n
Server Core and I/O Supplies
n
DSP and FPGA Power Supplies
n
SMPS Post-Regulator
Typical Application Circuit
20102801
* Minimum value required if Tantalum capacitor is used (see Application Hints).
December 2004
L
S
2004 National Semiconductor Corporation
DS201028
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP38841T-1.5 | 0.8A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| LP38841SX-0.8 | INLET, IEC, 16A, NON-ILLUMINATED, CB; Connector type:IEC; Gender:Plug; Current rating:16A; Voltage rating, AC:250V; Outlets, No. of:1; Termination method:Solder Lug; Series:POLYSNAP; Mounting type:Panel; Approval Bodies:UL RoHS Compliant: Yes |
| LP38841SX-1.2 | INLET, IEC, 16A, RED NEON, WITH CB; Connector type:IEC; Gender:Plug; Current rating:16A; Voltage rating, AC:250V; Outlets, No. of:1; Termination method:Solder Lug; Series:POLYSNAP; Mounting type:Panel; Approval Bodies:UL Recognised; RoHS Compliant: Yes |
| LP38841SX-1.5 | CROCODILE CLIP; Connector type:Test Clip; Material, contact:Steel; Plating, contact:Tin; Length / Height, external:58.7mm; Capacity, jaw max:14.5mm; Current, DC max:25A; Diameter, clip:14.5mm RoHS Compliant: Yes |
| LP38841T-0.8 | 0.8A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP38841S-1.2 | 功能描述:低壓差穩(wěn)壓器 - LDO 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38841S-1.2/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 0.8 Dual Rail Band gap LDO 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38841S-1.5 | 功能描述:低壓差穩(wěn)壓器 - LDO 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38841S-1.5/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38841SX-0.8 | 功能描述:低壓差穩(wěn)壓器 - LDO 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(lèi)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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