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TPS79318DBVR 参数 Datasheet PDF下载

TPS79318DBVR图片预览
型号: TPS79318DBVR
PDF下载: 下载PDF文件 查看货源
内容描述: 超低噪声,高PSRR ,快速射频200mA的低压差线性NANOSTAR晶圆级和SOT23稳压器 [ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA LOW-DROPOUT LINEAR REGULATORS IN NANOSTAR WAFER CHIP SCALE AND SOT23]
分类和应用: 稳压器调节器射频光电二极管输出元件信息通信管理
文件页数/大小: 18 页 / 447 K
品牌: TI [ TEXAS INSTRUMENTS ]
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DBV 5
DBV 6
YEQ
www.ti.com
TPS79301, TPS79318
TPS79325, TPS79328, TPS793285
TPS79330, TPS79333, TPS793475
SLVS348H – JULY 2001 – REVISED OCTOBER 2004
ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA LOW-DROPOUT LINEAR
REGULATORS IN NanoStar™ WAFER CHIP SCALE AND SOT23
FEATURES
200-mA RF Low-Dropout Regulator
With Enable
Available in 1.8-V, 2.5-V, 2.8-V, 2.85-V, 3-V,
3.3-V, 4.75-V, and Adjustable (1.22-V to 5.5-V)
High PSRR (70 dB at 10 kHz)
Ultralow-Noise (32 µV
RMS
, TPS79328)
Fast Start-Up Time (50 µs)
Stable With a 2.2-µF Ceramic Capacitor
Excellent Load/Line Transient Response
Very Low Dropout Voltage (112 mV at Full
Load, TPS79330)
5- and 6-Pin SOT23 (DBV) and NanoStar Wafer
Chip Scale (YEQ) Packages
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 NanoStar wafer chip scale and SOT23
packages. NanoStar packaging gives an ultrasmall
footprint as well as an ultralow profile and package
weight, making it ideal for portable applications such
as handsets and PDAs. Each device in the family is
stable, with a small 2.2-µF ceramic capacitor on the
output. The TPS793xx family uses an advanced,
proprietary BiCMOS fabrication process to yield ex-
tremely low dropout voltages (e.g., 112 mV at
200 mA, TPS79330). Each device achieves fast
start-up times (approximately 50 µs with a 0.001-µF
bypass capacitor) while consuming very low quiesc-
ent current (170 µA typical). Moreover, when the
device is placed in standby mode, the supply current
is reduced to less than 1 µA. The TPS79328 exhibits
approximately 32 µV
RMS
of output voltage noise at
2.8-V output with a 0.1-µF bypass capacitor. Appli-
cations 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.
TPS79328
APPLICATIONS
RF: VCOs, Receivers, ADCs
Audio
Cellular and Cordless Telephones
Bluetooth™, Wireless LAN
Handheld Organizers, PDAs
DBV PACKAGE
(TOP VIEW)
TPS79328
IN
GND
EN
1
2
3
4
NR
5
OUT
0.30
Output Spectral Noise Density (µV/√Hz)
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
100
V
IN
= 3.8 V
C
OUT
= 2.2
µF
C
NR
= 0.1
µF
Ripple Rejection (dB)
90
80
70
60
50
40
30
20
10
0
100
1k
10 k
Frequency (Hz)
100 k
0
10
RIPPLE REJECTION
vs
FREQUENCY
I
OUT
= 200 mA
Fixed Option
DBV PACKAGE
(TOP VIEW)
IN
GND
EN
1
2
3
6
5
4
OUT
FB
NR
0.25
0.20
0.15
I
OUT
= 1 mA
0.10
I
OUT
= 200 mA
0.05
I
OUT
= 10 mA
Adjustable Option
YEQ
PACKAGE
(TOP VIEW)
IN
C3
A3
C1
B2
A1
V
IN
= 3.8 V
C
OUT
= 10
µF
C
NR
= 0.01
µF
100
1k
10 k
100 k
1M
10 M
OUT
NR
GND
Frequency (Hz)
EN
Figure 1.
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 of Bluetooth Sig, Inc.
NanoStar is a trademark of Texas Instruments.
UNLESS OTHERWISE NOTED this document contains PRO-
DUCTION DATA information current as of publication date. Prod-
ucts conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily
include testing of all parameters.
Copyright © 2001–2004, Texas Instruments Incorporated