參數(shù)資料
型號(hào)： TDA3661
廠商： NXP Semiconductors N.V.
英文描述： Very low dropout voltage/quiescent current adjustable voltage regulator(低壓差/靜態(tài)電流可調(diào)電壓穩(wěn)壓器)
中文描述： 非常低壓差電壓/靜態(tài)電流可調(diào)穩(wěn)壓器（低壓差/靜態(tài)電流可調(diào)電壓穩(wěn)壓器）
文件頁(yè)數(shù)： 6/16頁(yè)
文件大?。?/td> 86K
代理商： TDA3661
2000 Feb 01
6
Philips Semiconductors
Preliminary specification
Very low dropout voltage/quiescent current
adjustable voltage regulator
TDA3661
TEST AND APPLICATION INFORMATION
handbook, halfpage
MGS581
8
1
2, 3, 6, 7
VREG
= 5 V
C2
10
μ
F
5
TDA3661
75.1 k
C1
(1)
1
μ
F
R1
24.9 k
R2
Fig.3 Test circuit.
(1) C1 is optional (to minimize supply noise only).
Noise
The output noise is determined by the value of the output
capacitor. The noise figure is measured at a bandwidth of
10 Hz to 100 kHz (see Table 1).
Table 1
Noise figures
Stability
The regulator is stabilized with an external capacitor
connected to the output. The value of this capacitor can be
selected using the diagrams shown in Figs 4 and 5.
The following three examples show the effects of the
stabilization circuit using different values for the output
capacitor.
OUTPUT
CURRENT
I
REG
(mA)
0.5
50
NOISE FIGURE (
μ
V)
C2 = 10
μ
F
C2 = 47
μ
F
C2 = 100
μ
F
550
650
320
400
300
400
handbook, halfpage
MDA961
ESR
(
)
C2 (
μ
F)
2
10
1
10
1
10
1
1
10
10
2
stable region
(2)
(1)
Fig.4
Graph for selecting the value of the output
capacitor.
(1) Maximum ESR at 200
μ
A
≤
I
REG
≤
100 mA.
(2) Minimum ESR only when I
REG
≤
200
μ
A.
handbook, halfpage
MDA962
ESR
(
)
IREG (mA)
3
10
2
10
22
1
10
1
1
10
10
3
10
2
stable region
Fig.5
ESR as a function of I
REG
for selecting the
value of the output capacitor.
相關(guān)PDF資料
PDF描述
TDA3662 Very low dropout voltage/quiescent current adjustable voltage regulator(低壓差/靜態(tài)電流可調(diào)電壓穩(wěn)壓器)
TDA3665 Very low dropout voltage/quiescent current adjustable voltage regulator(低壓差/靜態(tài)電流可調(diào)電壓穩(wěn)壓器)
TDA3666 Very low dropout voltage/quiescent current adjustable voltage regulator(低壓差/靜態(tài)電流可調(diào)電壓穩(wěn)壓器)
TDA3668AT Very low dropout voltage/quiescent current 5 V regulator with overvoltage switch off(帶過(guò)壓關(guān)斷低壓差/靜態(tài)電流5V電壓穩(wěn)壓器)
TDA3668 Very low dropout voltage/quiescent current 5 V regulator with overvoltage switch off
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA3661AT 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Very low dropout voltage/quiescent current adjustable voltage regulator
TDA3661AT/N1,118 功能描述:低壓差穩(wěn)壓器 - LDO TDA3661AT/SO8/REEL13//N1 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(dòng)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
TDA3661T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Very low dropout voltage/quiescent current adjustable voltage regulator
TDA3662 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Very low dropout voltage/quiescent current 3.0 V voltage regulator
TDA3662AT 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Very low dropout voltage/quiescent current 3.0 V voltage regulator
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