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參數(shù)資料
| 型號： | BQ71501DCKR |
| 英文描述： | VOLT REGULATOR|ADJUSTABLE|+1.2V TO +15V|CMOS|TSSOP|6PIN|PLASTIC |
| 中文描述： | 電壓調(diào)節(jié)器|調(diào)節(jié)| 1.2V至15V的|的CMOS | TSSOP封裝| 6針|塑料 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 225K |
| 代理商： | BQ71501DCKR |
TPS71525
TPS71533
TPS71501
SLVS338C
–
MAY 2001
–
REVISED APRIL 2002
6
www.ti.com
TYPICAL CHARACTERISTICS
18
16
14
12
Figure 10
POWER UP / POWER DOWN
VI
VO
VO = 3.3 V
RL = 66
VO
–
–
8
VI
–
–
7
6
5
4
3
2
1
0
t
–
Time
–
ms
2
0
6
4
10
8
20
Figure 11
t
–
Time
–
ms
0
150
100
50
200 250
350
300
400 450 500
5.3
LINE TRANSIENT RESPONSE
VO = 3.3 V
IO = 50 mA
Co = 10
μ
F
4.3
100
50
VO
–
–
VI
–
–
0
–
50
Figure 12
LOAD TRANSIENT RESPONSE
t
–
Time
–
μ
s
0
300
200
100
400 500
700
600
800 900 100
0
400
60
40
20
VO
–
–
-200
–
–
IO
VI = 4.3 V
VO = 3.3 V
Co = 10
μ
F
200
0
APPLICATION INFORMATION
The TPS715xx family of LDO regulators has been optimized for use with battery management ICs. After the
minimum input voltage requirement is met, it is always enabled. The device
’
s maximum input voltage is 24 V.
It has a dropout voltage of 415 mV at 50 mA, and its quiescent current is 3.2
μ
A typically. A typical application
circuit is shown in Figure 13.
C1
0.1
μ
F
OUT
4
3
IN
NC
GND
2
5
VI
VO
0.47
μ
F
+
1
NC/FB
Figure 13. Typical Application Circuit
external capacitor requirements
Although not required, a 0.047-
μ
F or larger input bypass capacitor, connected between IN and GND and located
close to the device, is recommended to improve transient response and noise rejection. A higher-value
electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the
device is located several inches from the power source.
Like all low-dropout regulators, the TPS715xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance is 0.47
μ
F. Any 0.47
μ
-F capacitor
is suitable. Capacitor values larger than 0.47
μ
F are acceptable.
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