參數(shù)資料
型號(hào)： TPS79350
廠商： Texas Instruments, Inc.
英文描述： ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA LOW-DROPOUT LINEAR REGULATORS(超低噪聲,200mA低壓差線性穩(wěn)壓器)
中文描述： 超低噪聲，高PSRR，快速射頻200毫安低壓差線性穩(wěn)壓器（超低噪聲，200mA的低壓差線性穩(wěn)壓器）
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 267K
代理商： TPS79350
TPS79301, TPS79318, TPS79325
TPS79328, TPS793285, TPS79330
TPS79333, TPS793475
SLVS348C – JULY 2001 – REVISED APRIL 2002
ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA
LOW-DROPOUT LINEAR REGULATORS
(3,00 mm x 3,00 mm)
Actual Size
(3,00 mm x 3,00 mm)
Actual Size
1
www.ti.com
FEATURES
200-mA Low-Dropout Regulator With EN
Available in 1.8-V, 2.5-V, 2.8-V, 2.85-V, 3-V,
3.3-V, 4.75-V, and Adjustable
High PSRR (70 dB at 10 kHz)
Ultralow Noise (32
μ
V)
Fast Start-Up Time (50
μ
s)
Stable With a 2.2-
μ
F Ceramic Capacitor
Excellent Load/Line Transient
Very Low Dropout Voltage
(112 mV at Full Load, TPS79330)
5-Pin SOT23 (DBV) Package
APPLICATIONS
Cellular and Cordless Telephones
VCOs
RF
Bluetooth
, Wireless LAN
Handheld Organizers, PDA
DESCRIPTION
The TPS793xx 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 2.2-
μ
F ceramic capacitor on the
output. The TPS793xx family uses an advanced,
proprietary BiCMOS fabrication process to yield
extremely low dropout voltages (e.g., 112 mV at 200
mA, TPS79330). Each device achieves fast start-up
times (approximately 50
μ
s with a 0.001-
μ
F bypass
capacitor) while consuming very low quiescent current
(170
μ
A typical). Moreover, when the device is placed
in standby mode, the supply current is reduced to less
than 1
μ
A. The TPS79328 exhibits approximately 32
μ
V
RMS
of output voltage noise with a 0.1-
μ
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.
10
100
1 k
10 k
10
40
80
100 k
1 M
10 M
R
f – Frequency – Hz
TPS79328
RIPPLE REJECTION
vs
FREQUENCY
IO = 10 mA
50
0
VI = 3.8 V
Co = 10
μ
F
C(byp) = 0.01
μ
F
IO = 200 mA
20
30
60
70
90
100
3
2
4
5
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
BYPASS
Fixed Option
3
2
4
6
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
BYPASS
5
FB
Adjustable Option
0
0.05
0.1
0.15
0.2
0.25
0.3
100
1 k
10 k
100 k
f – Frequency – Hz
IO = 1 mA
VI = 3.8 V
Co = 2.2
μ
F
C(byp) = 0.1
μ
F
IO = 200 mA
TPS79328
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
V
O
μ
H
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.
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
2002, Texas Instruments Incorporated
Bluetooth is a trademark owned by Bluetooth SIG, Inc.
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TPS79401DCQR 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS79401DCQRG4 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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