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參數(shù)資料
| 型號： | CS5231-3GDP5 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | 500mA, 3.3V Linear Regulator with Auxiliary Control |
| 中文描述： | 在500mA，3.3V的線性穩(wěn)壓器的輔助控制 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 280K |
| 代理商： | CS5231-3GDP5 |
Features
C
500mA, 3.3V Linear Regulator
with Auxiliary Control
Description
CS5231-3
Block Diagram
1
1
1. No Connect
2. V
IN
3. Gnd
4. V
OUT
5. AuxDrv
Tab = Gnd
A
Company
Rev. 3/31/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
Consult factory for other package
options.
The CS5231-3 combines a three-
terminal linear regulator with cir-
cuitry to control an external PFET
transistor with the intent of manag-
ing two input supplies. A 5V sup-
ply powers the regulator while an
auxiliary 3.3V supply is controlled
by the IC. The design has been opti-
mized to provide a “glitch-free”
transition between the two sup-
plies.
The CS5231-3 linear regulator pro-
vides a fixed 3.3V output @ 500mA
with an overall accuracy of ± 2%.
The NPN-PNP composite pass tran-
sistor provides a low dropout volt-
age and requires less supply cur-
rent than PNP designs. Full protec-
tion including current limit and
thermal shutdown is provided.
Also designed for low reverse cur-
rent, the IC prevents excessive cur-
rent from flowing from the output
to ground if the regulator input
voltage is lower than the output
voltage.
The CS5231-3 also controls an auxil-
iary supply that can provide power
to the regulator output when input
voltage for the regulator is not
available. The AuxDrv auxiliary
output is normally pulled up to the
regulator input voltage and drives
low whenever the input voltage
drops below 4.4V (nominal). It is
typically used to control a PFET
switch that connects a 3.3V auxil-
iary supply to the regulator output.
The CS5231-3 is available in a
5-lead D
2
PAK (TO-263) package.
Applications include Network
Interface Cards (NICs), modem
cards and power supplies with
multiple input sources.
Linear Regulator
I
3.3V ± 2% Output Voltage
I
3mA Quiescent Current
@ 500mA
I
Fast Transient Response
I
Current Limit
I
Thermal Shutdown with
Hysteresis
I
450μA Reverse Output
Current
I
Fast Transient Response
System Power Management
I
Auxiliary Supply Control
+
+
Internal
Bias
Bandgap
Reference
Thermal
Shutdown
Current
Limit
V
IN
10k
50k
AuxDrv
Gnd
V
UV
Comparator
V
REF
Error
Amp
Shutdown
V
OUT
Package Options
5 Lead D
2
PAK
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS5231-3GDPR5 | 功能描述:IC REG LDO 3.3V .5A D2PAK-5 RoHS:否 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(jié)構(gòu):正，固定式和可調(diào)式 輸出電壓:3.3V，1.25 V ~ 5.7 V 輸入電壓:4.5 V ~ 7 V 電壓 - 壓降（標準）:1.1V @ 1A 穩(wěn)壓器數(shù)量:2 電流 - 輸出:1A 電流 - 限制（最?。?1A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-5，DPak（4 引線 + 接片），TO-252AD 供應(yīng)商設(shè)備封裝:PPAK 包裝:管件 其它名稱:497-3576-5 |
| CS5233-3 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:500 mA and 1.5 A, 3.3 V Dual Input Linear Regulator with Auxiliary Control |
| CS5233-3/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:500 mA and 1.5 A， 3.3 V Dual Input Linear Regulator with Auxiliary Control |
| CS5233-3GDF8 | 功能描述:IC REG LDO 3.3V .5A 8SOIC RoHS:否 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(jié)構(gòu):正，固定式和可調(diào)式 輸出電壓:3.3V，1.25 V ~ 5.7 V 輸入電壓:4.5 V ~ 7 V 電壓 - 壓降（標準）:1.1V @ 1A 穩(wěn)壓器數(shù)量:2 電流 - 輸出:1A 電流 - 限制（最?。?1A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-5，DPak（4 引線 + 接片），TO-252AD 供應(yīng)商設(shè)備封裝:PPAK 包裝:管件 其它名稱:497-3576-5 |
| CS5233-3GDFR8 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:500 mA and 1.5 A, 3.3 V Dual Input Linear Regulator with Auxiliary Control |
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