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參數資料
| 型號： | TDA3661T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Very low dropout voltage/quiescent current adjustable voltage regulator |
| 中文描述： | 1.5 V-33 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO8 |
| 封裝： | 3.90 MM, PLASTIC, SOT-96, SO-8 |
| 文件頁數： | 6/16頁 |
| 文件大?。?/td> | 88K |
| 代理商： | TDA3661T |
9397 750 15049
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 05 — 28 June 2005
6 of 16
Philips Semiconductors
TDA3661
Very low dropout voltage/quiescent current voltage regulator
11.3.2
Application circuit with enable function
An enable function can easily be built with the TDA3661 by connecting a diode to pin ADJ.
When the voltage on pin ADJ is forced above 1.3 V, the output will switch off. The standby
current is equal to the quiescent current of the TDA3661.
The application circuit is given in
Figure 4
.
11.4 Additional application information
This section gives typical curves for various parameters measured on the TDA3661AT.
Standard test conditions are: V
P
= 14.4 V, T
amb
= 25
°
C and k = 4.01929.
(1) C1 is optional (to minimize supply noise only)
(2) C2
≤
4700
μ
F
Fig 3.
Application circuit with backup function
mgs582
VP
8
1
2, 3, 6, 7
C2
(2)
5
TDA3661
75.1 k
C1
(1)
1
μ
F
R1
24.9 k
R2
V
REG
= 5 V
C1 is optional (to minimize supply noise only)
Fig 4.
Application circuit with enable function
mgs583
VP
8
1
2, 3, 6, 7
enable
C2
10
μ
F
5
TDA3661
75.1 k
C1
(1)
1
μ
F
R1
24.9 k
R2
D1
V
REG
= 5 V
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