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參數(shù)資料
| 型號： | CS5208-1 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | 8A LDO 3-Pin Adjustable Linear Regulator |
| 中文描述： | 8A條LDO的3引腳可調(diào)線性穩(wěn)壓器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 136K |
| 代理商： | CS5208-1 |
Application Notes
The CS5208-1 linear regulator has a composite PNP-NPN
output stage that requires an output capacitor for stability.
A detailed procedure for selecting this capacitor is includ-
ed in the Stability Considerations section.
Design Guidelines
This LDO adjustable regulator has an output voltage range
of 1.25V to 4.5V. An external resistor divider sets the out-
put voltage as shown in Figure 1. The regulators voltage
sensing error amplifier maintains a fixed 1.25V reference
between the output pin and the adjust pin.
A resistor divider network R
1
and R
2
causes a fixed current
to flow to ground. This current creates a voltage across R2
that adds to the 1.25V across R
1
and sets the overall output
voltage. The adjust pin current (typically 50μA) also flows
through R
2
and adds a small error that should be taken
into account if precise adjustment of Vout is necessary. The
output voltage is set according to the formula:
V
OUT
= V
REF
′
+ R
2
′
I
Adj
The term I
Adj
′
R
2
represents the error added by the adjust
pin current.
R
1
is chosen so that the minimum load current is a least
10mA. R
1
and R
2
should be of the same composition for
best tracking over temperature. The divider resistors
should be placed as close to the IC as possible and connect-
ed to the output with a separate metal trace.
R
1
+ R
2
R
1
Adjustable Operation
Theory of Operation
C
4
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
O
V
IN
-V
OUT
(V)
4.0
4.5
5.0
5.5
D
Output Current (A)
0.00
0.25
0.50
0.75
1.00
1.25
0.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
8.0
1.00
2.00
3.00
4.00
5.00
M
V
IN
– V
OUT
(V)
0.80
0.82
0.88
0.90
0.98
1.00
T
CASE
= 23
°
C
0.84
0.86
0.92
0.94
0.96
T
CASE
= 125
°
C
T
CASE
= 0
°
C
Typical Performance Characteristics: continued
Dropout Voltage vs. Output Current
Short Circuit Current vs. V
IN
- V
OUT
Minimum Load Current vs. V
IN
- V
OUT
10
1
10
2
10
3
10
4
10
5
20.0
30.0
50.0
70.0
90.0
Frequency (Hz)
R
80.0
60.0
40.0
10.0
V
IN
- V
OUT
= 2V
V
Ripple
= 1V
PP
I
OUT
= 4A
C
Adj
= 0.1
m
F
C
OUT
= 22
m
F
10
6
Ripple Rejection vs. Frequency
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS5208-1/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8A LDO 3-Pin Adjustable Linear Regulator |
| CS5208-1GT3 | 功能描述:IC REG LDO ADJ 8A TO220-3 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)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(biāo)準(zhǔn)）: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 |
| CS-5208-1T3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| CS-5208A-1T3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Adjustable Voltage Regulator |
| CS5210-1 | 制造商:CHERRY 制造商全稱:CHERRY 功能描述:10A LDO 3-Pin Adjustable Linear Regulator |
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