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參數(shù)資料
| 型號： | CS8321YT3 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | Micropower 5V, 150mA Low Dropout Linear Regulator |
| 中文描述： | 微5V的，150mA的低壓差線性穩(wěn)壓器 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 164K |
| 代理商： | CS8321YT3 |
2
Electrical Characteristics:
6V < V
IN <
26V, I
OUT
=1mA, -40C 2 T
A
2 125C, -40C 2 T
J
2 150C unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
C
PACKAGE LEAD #
LEAD SYMBOL
FUNCTION
Circuit Description and Application Notes
The CS8321 is a series pass voltage regulator. It consists of
an error amplifier, bandgap voltage reference, PNP pass
transistor with antisaturation control, and current limit.
As the voltage at the input, V
IN
, is increased, Q
N
is for-
ward biased via R. Q
N
provides base drive for Q
P
. As Q
P
becomes forward biased, the output voltage, V
OUT
, begins
to rise as Q
P
s output current charges the output capacitor.
Once V
OUT
rises to a certain level, the error amplifier
becomes biased and provides the appropriate amount of
base current to Q
P
. The error amplifier monitors the scaled
output voltage via an internal voltage divider, R1 and R2,
and compares it to the bandgap voltage reference. The
error amplifiers output is a current which is equal to the
error amplifiers differential input voltage times its
transconductance. Therefore, the error amplifier varies the
base drive current to Q
N
, which provides bias to Q
P
, based
on the difference between the reference voltage and the
scaled output voltage, V
OUT
.
Antisaturation Protection
An antisaturation control circuit has also been added to
prevent the pass transistor from going into deep satura-
tion, which would cause excessive power dissipation due
to large bias currents lost to the substrate via a parasitic
PNP transistor, as shown in Figure 1.
Figure 1. The parasitic PNP transistor which is part of the pass transis-
tor (Q
P
) structure.
V
OUT
Q
P
V
IN
Q
Parasitic
Substrate
Voltage Reference and Output Circuitry
Package Lead Description
I
Output Stage
Output Voltage, V
OUT
9V < V
IN
< 16V,
100μA 2 I
OUT
2 150mA
I
OUT
= 150mA, -40C 2 T
A
2 85C
I
OUT
= 150mA, T
A
= 125C
I
OUT
= 1mA @ V
IN
= 13V
I
OUT
< 50mA @ V
IN
= 13V
I
OUT
< 150mA @ V
IN
= 13V
V
IN
= 14V, 100μA < I
OUT
< 150mA
6V < V < 26V, I
OUT
= 1mA
7 D V
IN
D 17V, I
OUT
= 150mA,
f
= 120Hz
4.90
5.00
5.10
V
Dropout Voltage (V
IN
-V
OUT
)
0.3
0.5
0.6
200
6
25
50
50
V
V
μA
mA
mA
mV
mV
dB
Quiescent Current, (I
Q
)
4
15
5
5
75
Load Regulation
Line Regulation
Ripple Rejection
60
Current Limit
Short Circuit Output Current
Reverse Current
175
60
250
200
140
mA
mA
μA
V
OUT
= 0V
V
OUT
= 5V, V
IN
= 0V
200
3L D
2
PAK
3L TO-220
1
1
V
IN
Gnd
Input Voltage
2
2
Ground. All Gnd leads must be connected to Ground.
3
3
V
OUT
5V, ±2%, 150mA Output.
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| CS8361YDW20 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS8321YT3G | 功能描述:低壓差穩(wěn)壓器 - LDO 5V/150mA Micropower w/ENABLE 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(fù)載調(diào)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| CS832-2 | 制造商:Captive Fastener Corporation 功能描述: |
| CS832-3 | 制造商:Captive Fastener Corporation 功能描述: |
| CS832A1 | 制造商:HVPSI 制造商全稱:High Voltage Power Solutions, Inc. 功能描述:MOV Modules |
| CS832A2 | 制造商:HVPSI 制造商全稱:High Voltage Power Solutions, Inc. 功能描述:MOV Modules |
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