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TPS79618KTTR Datasheet

  • TPS79618KTTR

  • ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A LOW-DROPOUT LINEAR RE...

  • 18頁(yè)

  • TI

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TPS79601, TPS79618, TPS79625
TPS79628, TPS79630, TPS79633
www.ti.com
SLVS351D 鈥?SEPTEMBER 2002 鈥?REVISED OCTOBER 2004
ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A
LOW-DROPOUT LINEAR REGULATORS
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
1-A Low-Dropout Regulator With Enable
Available in 1.8-V, 2.5-V, 2.8-V, 3-V, 3.3-V, and
Adjustable (1.2-V to 5.5-V)
High PSRR (53 dB at 10 kHz)
Ultralow-Noise (40 碌V
RMS
, TPS79630)
Fast Start-Up Time (50 碌s)
Stable With a 1-碌F Ceramic Capacitor
Excellent Load/Line Transient Response
Very Low Dropout Voltage (250 mV at Full
Load, TPS79630)
3 x 3 SON, 6-Pin SOT223-6, and
5-Pin DDPAK Packages
DESCRIPTION
The TPS796xx 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 small outline, 3 x 3 SON, SOT223-6,
and 5-pin DDPAK packages. Each device in the
family is stable with a small 1-碌F ceramic capacitor
on the output. The family uses an advanced, pro-
prietary BiCMOS fabrication process to yield ex-
tremely low dropout voltages (e.g., 250 mV at 1 A).
Each device
achieves
fast
start-up
times
(approximately 50 碌s with a 0.001-碌F bypass capaci-
tor) while consuming very low quiescent current
(265 碌A(chǔ) typical). Moreover, when the device is placed
in standby mode, the supply current is reduced to
less than 1 碌A(chǔ). The TPS79630 exhibits approximately
40 碌V
RMS
of output voltage noise at 3.0-V output, 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, low
noise features, and the fast response time.
APPLICATIONS
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鈥?/div>
RF: VCOs, Receivers, ADCs
Audio
Bluetooth鈩? Wireless LAN
Cellular and Cordless Telephones
Handheld Organizers, PDAs
DCQ PACKAGE
SOT223-6
(TOP VIEW)
DRB PACKAGE
3 x 3 SON
(TOP VIEW)
IN 1
6
GND
IN 2
OUT 3
OUT 4
8 EN
7 NC
6 GND
5 NR
Ripple Rejection 鈭?dB
TPS79630
TPS79630
70
60
50
40
30
20
10
0
1
10
100
1k
I
OUT
= 1 mA
Output Spectral Noise Density 鈭?/div>
碌V//Hz
EN
IN
GND
OUT
NR/FB
1
2
3
4
5
RIPPLE REJECTION
vs
FREQUENCY
80
V
IN
= 4 V
C
OUT
= 10
碌F
C
NR
= 0.01
碌F
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
0.7
0.6
0.5
0.4
0.3
I
OUT
= 1 mA
0.2
0.1
I
OUT
= 1.5 A
0.0
100
1k
10k
100k
V
IN
= 5.5 V
C
OUT
= 2.2
碌F
C
NR
= 0.1
碌F
I
OUT
= 1 A
KTT (DDPAK) PACKAGE
(TOP VIEW)
EN
IN
GND
OUT
NR/FB
1
2
3
4
5
10k 100k
1M
10M
Frequency (Hz)
Frequency (Hz)
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.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2002鈥?004, Texas Instruments Incorporated

TPS79618KTTR 產(chǎn)品屬性

  • 500

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，固定式

  • 1.8V

  • 2.7 V ~ 5.5 V

  • -

  • 1

  • 1A（最小值）

  • 2.4A

  • -40°C ~ 125°C

  • 表面貼裝

  • TO-263-6，D²Pak（5 引線+接片），TO-263BA

  • DDPAK/TO-263-5

  • 帶卷 (TR)

TPS79618KTTR相關(guān)型號(hào)PDF文件下載

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