參數(shù)資料
型號(hào)： TDA3608THQ
廠商： NXP Semiconductors N.V.
英文描述： Multiple voltage regulators with switch
中文描述： 與開關(guān)穩(wěn)壓器多
文件頁(yè)數(shù)： 13/20頁(yè)
文件大?。?/td> 123K
代理商： TDA3608THQ
1997 Aug 14
13
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch
TDA3608Q
TEST AND APPLICATION INFORMATION
Test information
handbook, full pagewidth
MGK605
regulator 2
output
regulator 1
output
enable input power switch
enable input regulator 3
back-up
reset delay
capacitor
reset
output
C3
10
μ
F
C2
220 nF
R4
2.2
C1
220 nF
C4
10
μ
F
hold output
R1
1 k
R3
10 k
R2
10 k
1 k
1 k
5 V
5 V
10 V
regulator 3
output
C5
10
μ
F
C6
1
μ
F
C8
220 nF
C7
47 nF
RL(sw)
RL(REG2)
1 k
RL(REG1)
1 k
RL(REG3)
power switch output
13
11
2
8
5
3
4
12
9
7
1
10
GND
TDA3608Q
VP
supply voltage
VENSW
VEN3
enable input regulator 1
6
VEN1
Vbu
(1)
Fig.6 Test circuit.
(1) Capacitor not required for stability.
Application information
N
OISE
The noise on the supply line depends on the value of the
supply capacitor and is caused by a current noise (output
noise of the regulators is translated into a current noise by
means of the output capacitors). Table 1 shows the noise
figure with the corresponding output capacitor for each
regulator. The noise is minimal when a high frequency
capacitor of 220 nF in parallel with an electrolytic capacitor
of 100
μ
F is connected directly to pins V
P
and GND.
Table 1
Noise figures
Note
1.
Measured at a bandwidth of 200 kHz.
REGULATOR
NOISE FIGURE
(1)
C
O
= 10
μ
F
225
μ
V
225
μ
V
255
μ
V
C
O
= 47
μ
F
150
μ
V
150
μ
V
200
μ
V
C
O
= 100
μ
F
135
μ
V
135
μ
V
180
μ
V
1
2
3
相關(guān)PDF資料
PDF描述
TDA3608 Multiple voltage regulator with switch
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TDA3609JR Multiple voltage regulator with switch and ignition buffers
TDA3651 VERTICAL DEFLECTION CIRCUIT
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