- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377713 > LT1763-3 (Linear Technology Corporation) 500mA, Low Noise, LDO Micropower Regulators(3V輸出，5000mA,低噪聲，低壓差穩(wěn)壓器) PDF資料下載
參數(shù)資料
| 型號(hào)： | LT1763-3 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 500mA, Low Noise, LDO Micropower Regulators(3V輸出，5000mA,低噪聲，低壓差穩(wěn)壓器) |
| 中文描述： | 500mA的，低噪聲，LDO的微功耗穩(wěn)壓器（3V的輸出，五零零零毫安，低噪聲，低壓差穩(wěn)壓器） |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 228K |
| 代理商： | LT1763-3 |
13
LT1763 Series
APPLICATIO
S I
N
FOR
ATIO
U
W
U
induced by vibrations in the system or thermal transients.
The resulting voltages produced can cause appreciable
amounts of noise, especially when a ceramic capacitor is
used for noise bypassing. A ceramic capacitor produced
Figure 6’s trace in response to light tapping from a pencil.
Similar vibration induced behavior can masquerade as
increased output voltage noise.
Thermal Considerations
The power handling capability of the device will be limited
by the maximum rated junction temperature (125
°
C). The
power dissipated by the device will be made up of two
components:
1. Output current multiplied by the input/output voltage
differential: (I
OUT
)(V
IN
– V
OUT
), and
2. GND pin current multiplied by the input voltage:
(I
GND
)(V
IN
).
The GND pin current can be found by examining the GND
Pin Current curves in the Typical Performance Character-
istics. Power dissipation will be equal to the sum of the two
components listed above.
The LT1763 series regulators have internal thermal limit-
ing designed to protect the device during overload condi-
tions. For continuous normal conditions, the maximum
junction temperature rating of 125
°
C must not be
exceeded. It is important to give careful consideration to
all sources of thermal resistance from junction to ambient.
Additional heat sources mounted nearby must also be
considered.
For surface mount devices, heat sinking is accomplished
by using the heat spreading capabilities of the PC board
and its copper traces. Copper board stiffeners and plated
through-holes can also be used to spread the heat gener-
ated by power devices.
The following table lists thermal resistance for several
different board sizes and copper areas. All measurements
were taken in still air on 3/32" FR-4 board with one ounce
copper.
Figure 6. Noise Resulting from Tapping on a Ceramic Capacitor
LT1763-5
C
OUT
= 10
μ
F
C
BYP
= 0.01
μ
f
I
LOAD
= 100mA
V
500
μ
V/DIV
100ms/DIV
1763 F06
Figure 5. Ceramic Capacitor Temperature Characteristics
Figure 4. Ceramic Capacitor DC Bias Characteristics
DC BIAS VOLTAGE (V)
C
1763 F04
20
0
–20
–40
–60
–80
–1000
4
8
10
2
6
12
14
X5R
Y5V
16
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10
μ
F
TEMPERATURE (
°
C)
–50
40
20
0
–20
–40
–60
–80
–100
25
75
1763 F05
–25
0
50
100
125
Y5V
C
X5R
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10
μ
F
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1763-3.3 | 500mA, Low Noise, LDO Micropower Regulators(3.3V輸出，5000mA,低噪聲，低壓差穩(wěn)壓器) |
| LT1763-5 | 500mA, Low Noise, LDO Micropower Regulators(5V輸出，5000mA,低噪聲，低壓差穩(wěn)壓器) |
| LT1764-3.3 | 3A, Fast Transient Response, Low Noise, LDO Regulators(3.3V輸出，3A，快速瞬時(shí)響應(yīng)，低噪聲，低壓差穩(wěn)壓器) |
| LT1764EQ-1.5 | 3A, Fast Transient Response, Low Noise,LDO Regulators |
| LT1764-2.5 | 3A, Fast Transient Response, Low Noise,LDO Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1763-3.3 | 制造商:Linear Technology 功能描述: |
| LT176333 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LT1763CDE | 制造商:Linear Technology 功能描述:LDO Regulator Pos 1.22V to 20V 0.5A 12-Pin DFN EP |
| LT1763CDE#PBF | 功能描述:IC REG LDO ADJ .5A 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:8V 輸入電壓:10.5 V ~ 23 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.7V @ 40mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:100mA（最小值） 電流 - 限制（最?。?- 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1075 (CN2011-ZH PDF) 其它名稱:296-24390-1 |
| LT1763CDE#TR | 制造商:Linear Technology 功能描述:SP-LINREG, 500mA L/Noise LDO uP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。