參數(shù)資料
型號(hào): TLE4307
廠商: INFINEON TECHNOLOGIES AG
英文描述: Power-Charge-Pump and Low-Drop Voltage Regulator
中文描述: 功率電荷泵和低壓降穩(wěn)壓器
文件頁(yè)數(shù): 4/10頁(yè)
文件大?。?/td> 88K
代理商: TLE4307
TLE 4307
Data Sheet Rev. 1.1
4
2000-10-11
Figure 3
Application Example
Application Description
The IC is meant to be used with a DC power supply. The power charge pump limits the
energy that is needed to drive the load at the output Q of the IC. The energy is stored to
a capacity
C
C
, connected to pin C. When pin C reaches
V
C,off
, the power charge pump is
switched off. Since the power supply consists of the inductance and a parasitic series
resistance, the remaining available energy is dissipated in the external power supply and
therefore does not stress the IC with this dispensable energy. The very low drop
regulator is provided with the energy, stored in
C
C
. The regulator requires an output
capacitor
C
Q
for the stability of the regulating circuit. Stability is guaranteed at values
above 22
μ
F and an ESR
1
within the operating temperature range.
AES02794
Power
Charge
Pump
Very
Low-Drop
Regulator
TLE 4307
4
1
5
SL
I
V
Line
V
ac
= 12 V
L
S
= 4 mH
R
S
= 15
D1
4x1N4001
or
B40C800
C
Q1
220 nF
2
C
3
GND
C
C
470
μ
F
15 V
Q
C
Q2
22
μ
F
6.3 V
C
S
100 pF
V
OUT
= 3.8 V
I
OUT
= 0.4 A
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