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TPS79133 Datasheet

  • TPS79133

  • 超低噪声、高 PSRR、快速射频、低启动、100mA 低压降稳压器

  • 352.00KB

  • 19页

  • TI

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Actual Size
(3,00 mm x 3,00 mm)
Actual Size
(3,00 mm x 3,00 mm)
TPS79101, TPS79118
TPS79133, TPS79147
SLVS325C 鈭?MARCH 2001 鈭?REVISED MAY 2002
ULTRALOW NOISE, HIGH PSRR, FAST RF 100 mA
LOW DROPOUT LINEAR REGULATORS
FEATURES
D
100-mA Low-Dropout Regulator With EN
D
Available in 1.8-V, 3.3-V, 4.7-V, and Adj.
D
High PSRR (70 dB at 10 kHz)
D
Ultralow Noise (15
碌V
RMS
)
D
Fast Start-Up Time (63
碌s)
D
Stable With Any 1-碌F Ceramic Capacitor
D
Excellent Load/Line Transient
D
Very Low Dropout Voltage
(38 mV at Full Load, TPS79147)
DESCRIPTION
The TPS791xx family of low-dropout (LDO)
low-power linear voltage regulators features high
power supply rejection ratio (PSRR), ultralow
noise, fast start-up, and excellent line and load
transient responses in a small outline, SOT23,
package. Each device in the family is stable, with
a small 1-碌F ceramic capacitor on the output. The
family uses an advanced, proprietary BiCMOS
fabrication process to yield extremely low dropout
voltages (e.g., 38 mV at 100 mA, TPS79147).
Each device achieves fast start-up times
(approximately 63
碌s
with a 0.001
碌F
bypass
capacitor) while consuming very low quiescent
current (170
碌A
typical). Moreover, when the
device is placed in standby mode, the supply
current is reduced to less than 1
碌A.
The
TPS79118 exhibits approximately 15
碌V
RMS
of
output voltage noise with a 0.1
碌F
bypass
capacitor. Applications with analog components
that are noise sensitive, such as portable RF
electronics, benefit from the high PSRR and low
noise features as well as the fast response time.
D
5-Pin SOT23 (DBV) Package
D
TPS792xx Provides EN Options
APPLICATIONS
D
Cellular and Cordless Telephones
D
VCOs
D
RF
D
Bluetooth铮? Wireless LAN
D
Handheld Organizers, PDA
DBV PACKAGE
(TOP VIEW)
IN
GND
EN
1
2
3
4
BYPASS
Ripple Rejection 鈭?dB
TPS79133
TPS79133
5
OUT
100
90
80
70
60
50
40
30
RIPPLE REJECTION
vs
FREQUENCY
VI = 4.3 V
Co = 10
碌F
C(byp) = 0.01
碌F
IO = 100 mA
Hz
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
0.4
0.35
0.3
Output Spectral Noise Density 鈭?/div>
0.25
0.2
0.15
0.1
0.05
0
100
IO = 1 mA
IO = 100 mA
VO = 4.3 V
Co = 1
碌F
C(byp) = 0.1
碌F
碌
V/
Fixed Option
DBV PACKAGE
(TOP VIEW)
IN
GND
EN
1
2
3
6
5
4
OUT
FB
BYPASS
IO = 10 mA
20
10
100
1k
10 k 100 k
f 鈭?Frequency 鈭?Hz
1M
10 M
Adjustable Option
1k
10 k
f 鈭?Frequency 鈭?Hz
100 k
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
Bluetooth is a trademark owned by the Bluetooth SIG, Inc.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
铮?/div>
2002, Texas Instruments Incorporated

TPS79133 PDF文件相关型号

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