參數(shù)資料
型號(hào)： LT1965EDDPBF
廠商： Linear Technology Corporation
英文描述： 1.1A, Low Noise, Low Dropout Linear Regulator
中文描述： 1.1A的，低噪聲，低壓差線性穩(wěn)壓器
文件頁(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 213K
代理商： LT1965EDDPBF
LT1965
9
1965f
APPLICATIONS INFORMATION
capacitor values below appropriate levels. Capacitor DC
bias characteristics tend to improve as component case
size increases, but expected capacitance at operating
voltages should be verified.
Voltage and temperature coefficients are not the only
sources of problems. Some ceramic capacitors have a
piezoelectric response. A piezoelectric device generates
voltage across its terminals due to mechanical stress,
similar to the way a piezoelectric accelerometer or micro-
phone works. For a ceramic capacitor, the stress can be
induced by vibrations in the system or thermal transients.
The resulting voltages produced can cause appreciable
amounts of noise. A ceramic capacitor produced the trace
in Figure 4 in response to light tapping from a pencil.
Similar vibration induced behavior can masquerade as
increased output voltage noise.
Overload Recovery
Like many IC power regulators, the LT1965 has safe oper-
ating area protection. The safe area protection decreases
current limit as input-to-output voltage increases and keeps
the power transistor inside a safe operating region for all
values of input-to-output voltage. The protective design
provides some output current at all values of input-to-
output voltage up to the device breakdown.
When power is first applied, as input voltage rises, the
output follows the input, allowing the regulator to start up
into very heavy loads. During start-up, as the input voltage
is rising, the input-to-output voltage differential is small,
allowing the regulator to supply large output currents. With
a high input voltage, a problem can occur wherein removal
of an output short will not allow the output to recover.
Figure 2. Ceramic Capacitor DC Bias Characteristics
Figure 3. Ceramic Capacitor Temperature Characteristics
Figure 4. Noise Resulting from Tapping on a Ceramic Capacitor
DC BIAS VOLTAGE (V)
C
1965 F02
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
1965 F03
–25
0
50
100
125
Y5V
C
X5R
BOTH CAPACITORS ARE 16V,
1210 CASE SIZE, 10
μ
F
1ms/DIV
1mV/DIV
1965 F04
V
OUT
= 1.3V
C
OUT
= 10
μ
F
I
LOAD
= 0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1965EDD-PBF 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:1.1A, Low Noise, Low Dropout Linear Regulator
LT1965EDDTRPBF 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:1.1A, Low Noise, Low Dropout Linear Regulator
LT1965EDD-TRPBF 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:1.1A, Low Noise, Low Dropout Linear Regulator
LT1965EMS8E 制造商:Linear Technology 功能描述:LDO Regulator Pos 1.2V to 19.5V 1.1A 8-Pin MSOP EP
LT1965EMS8E#PBF 功能描述:IC REG LDO ADJ 1.1A 8-MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:MIC5365/66 Ultra-small LDO Regulators 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:3V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.155V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:200mA 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:4-UDFN 裸露焊盤(pán)，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1x1） 包裝:Digi-Reel® 其它名稱(chēng):576-3192-6
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