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參數(shù)資料
| 型號： | SA57022-XX |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 500 mA LDO with ON/OFF control and Vref bypass |
| 中文描述： | 500毫安LDO穩(wěn)壓器的ON / OFF控制和Vref旁路 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 80K |
| 代理商： | SA57022-XX |
Philips Semiconductors
Product data
SA57022-XX
500 mA LDO with ON/OFF control and V
ref
bypass
2
2003 Oct 13
GENERAL DESCRIPTION
The SA57022-XX has an extremely precise fixed output with a
typical accuracy of
±
2%. It is designed to provide very low dropout
and ultra low noise with an optional Bypass pin, and fast transient
response. Supply current is reduced to zero (typical).
The SA57022-XX incorporates both over-temperature and
over-current protection. The SA57022-XX is stable with an output
capacitor of only 1.0
μ
F and has a maximum output current of
500 mA. It is available in the 7-pin small outline package (SOP002).
FEATURES
Very low dropout voltage: 300 mV typ. (I
out
= 500 mA)
High precision output voltage:
±
2%
Output current capacity: 500 mA
Low noise: 75
μ
V
rms
typ. @ 20 Hz to 80 KHz, for C
n
= 470 pF.
Extremely good line regulation: 10 mV typical
Extremely good load regulation: 20 mV typical
Low temperature drift co-efficient to V
out
:
±
100 ppm/
°
C
Internal current limit and thermal shut-down circuits
Input voltage range: –0.3 V to 12 V
Wide preset output voltage range: 1.8 V to 5 V
Wide operating temperature range: –40
°
C to +85
°
C
APPLICATIONS
Battery-operated systems
Portable computers
Cameras, VCRs and camcorders
PCMCIA cards, modems, pagers
Cellular/GSM/PHS phones
Linear post-regulator for SMPS
Instrumentation
SIMPLIFIED SYSTEM DIAGRAM
V
IN
BYPASS
V
OUT
GND
7
1
4
3
5
ON/OFF
R
R
CURRENT
LIMIT
REFERENCE
BIAS
DRIVER
THERMAL
SHUTDOWN
SL01527
Figure 1. Simplified system diagram.
相關(guān)PDF資料 |
PDF描述 |
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| SA57026 | 300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57026D | 300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57026F | 300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57031-39UK | Micropower 150 mA, low-noise, low dropout linear regulator with on/off |
| SA57031-45UK | Micropower 150 mA, low-noise, low dropout linear regulator with on/off |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA57026 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57026D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57026F | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:300 mA LDO with ON/OFF control and independent delayed RESET function |
| SA57031-18UK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Micropower 150 mA, low-noise, low dropout linear regulator with on/off |
| SA57031-24UK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Micropower 150 mA, low-noise, low dropout linear regulator with on/off |
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