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參數(shù)資料
| 型號(hào)： | AS1521 |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 300mA Low Dropout Voltage Regulator(300mA，低壓差穩(wěn)壓器) |
| 中文描述： | 300mA低壓差穩(wěn)壓器（300mA電流，低壓差穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 115K |
| 代理商： | AS1521 |
Rev. 10/11/00
AS1521
300mA Low Dropout Voltage Regulator
(PRELIMINARY INFORMATION)
FEATURES
1%
Output Accuracy @ 2.5V, 3.3V, 5V, @ 300mA Output
Battery Powered Systems
Very Low Quiescent Current
0.42V (Typ.) Dropout Voltage @ 300mA
Extremely Tight Load And Line Regulation
Current & Thermal Limiting
Logic-Controlled Electronic Shutdown
Reverse Battery Protection
Output Programmable From 1.24 To 20V
Equivalent Replacement For LT1521
PRODUCT DESCRIPTION
The AS1521 is a low power voltage regulator. This device is an excellent choice for use in battery-powered applications such as
cordless telephones, radio control systems, and portable computers. The AS1521 features very low quiescent current and very low
dropout voltage. This includes a tight initial tolerance of
±
1% max, and very low output temperature coefficient, making the AS1521
useful as a low-power voltage reference.
The error flag output feature is used as power-on reset for warning of a low output voltage, due to falling voltage input of batteries.
The AS1521 is offered in a SO-8, SOT-252, TO-223, TO-220 & TO-263 packages.
ORDERING INFORMATION
SO-8
TO-252
SOT-223
3-PIN
3-PIN
AS1521S-X
AS1521R-X
AS1521M3-X
AS1521U-X
AS1521T-X
APPLICATIONS
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Bar Code Scanners
SMPS Post-Regulator
Voltage Reference
Automotive Electronics
TO-220
TO-263
3-PIN
Oper. Temp.
Range
-40
°
C to +125
°
C
PIN CONNECTIONS
X= Output Voltage (2.5V, 3.3V, 5.0V, or Blank for Adj.)
Top View
2
1
3
4
8
7
6
5
AS1521
8-Pin Surface Mount (S)
Top View
AS1521
1
3
2
SOT-223 (M3)
Top View
TO-263-3 (T)
1
AS1521
2
3
Front View
TO-220-3 (U)
AS1521
1
2
3
Front View
TO-252 (R)
3
2
1
A
V
OUT
SENSE/ ADJ
GND
ERROR
V
IN
GND
GND
SHDN
V
IN
GND V
OUT
V
OUT
GND V
IN
V
OUT
GND V
IN
V
OUT
GND
V
IN
SHDN
V
OUT
<0.25V
>2.8V
NC
OFF
ON
ON
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1521BTST | 制造商:AMS 功能描述:IC ADC 10BIT 300KSPS TSSOP-20 制造商:AMS 功能描述:IC, ADC, 10BIT, 300KSPS, TSSOP-20; Resolution (Bits):10bit; Sampling Rate:300kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Supply Current:2.7mA; Digital IC Case Style:TSSOP; No. of Pins:20 ;RoHS Compliant: Yes |
| AS1521-BTST | 功能描述:IC ADC 10BIT 8CH 300K 20-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:250 系列:- 位數(shù):12 采樣率（每秒）:1.8M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-LQFP 供應(yīng)商設(shè)備封裝:48-LQFP（7x7） 包裝:管件 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極 |
| AS1521-BTSU | 制造商:AMSCO 制造商全稱(chēng):austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 8-Channel A/D Converters |
| AS1521-T | 制造商:ams 功能描述:IC ADC 10BIT 8CH 300K 20-TSSOP 制造商:ams 功能描述:T&R / TSSOP 16 |
| AS1522 | 制造商:AMSCO 制造商全稱(chēng):austriamicrosystems AG 功能描述:10-Bit, Single-Supply, Low-Power, 400/300ksps, 4-Channel A/D Converters |
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