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TPS78633KTTR Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS78633KTTR
Descripción Electrónicos  ULTRALOW-NOISE, HIGH-PSRR, FAST, RF, 1.5-A LOW-DROPOUT LINEAR REGULATORS
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS78633KTTR Datasheet(HTML) 1 Page - Texas Instruments

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background image
1
2
3
4
5
6
GND
NR/FB
OUT
GND
IN
EN
1
KTT (DDPAK) PACKAGE
(TOP VIEW)
2
3
4
5
EN
IN
GND
OUT
NR/FB
EN
NC
GND
NR/FB
8
7
6
5
IN
IN
OUT
OUT
1
2
3
4
DRB PACKAGE
3mm x 3mm SON
(TOP VIEW)
DCQ PACKAGE
SOT223-6
(TOP VIEW)
0
10
20
30
40
50
60
70
80
Frequency (Hz)
1
10k
10M
1k
IOUT = 1 mA
TPS78630
RIPPLE REJECTION
vs
FREQUENCY
IOUT = 1.5 A
VIN = 4 V
COUT = 10 mF
CNR = 0.01 mF
10
100
100k
1M
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Frequency (Hz)
100
10k
100k
1k
IOUT = 1 mA
TPS78630
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
IOUT = 1.5 A
VIN = 5.5 V
COUT = 2.2 mF
CNR = 0.1 mF
TPS786xx
www.ti.com
SLVS389L – SEPTEMBER 2002 – REVISED OCTOBER 2010
ULTRALOW-NOISE, HIGH-PSRR, FAST, RF, 1.5-A
LOW-DROPOUT LINEAR REGULATORS
Check for Samples: TPS786xx
1
FEATURES
DESCRIPTION
234
1.5-A Low-Dropout Regulator With Enable
The
TPS786xx
family
of
low-dropout
(LDO)
low-power linear voltage regulators features high
Available in Fixed and Adjustable (1.2-V to
power-supply rejection ratio (PSRR), ultralow noise,
5.5-V) Output Versions
fast start-up, and excellent line and load transient
High PSRR (49 dB at 10 kHz)
responses in small outline, SOT223-6 and DDPAK-5
Ultralow Noise (48 mVRMS, TPS78630)
packages. Each device in the family is stable, with a
small 1-mF ceramic capacitor on the output. The
Fast Start-Up Time (50 ms)
family
uses
an
advanced,
proprietary
BiCMOS
Stable With a 1-mF Ceramic Capacitor
fabrication process to yield extremely low dropout
Excellent Load/Line Transient Response
voltages (for example, 390 mV at 1.5 A). Each device
achieves fast start-up times (approximately 50 ms with
Very Low Dropout Voltage (390 mV at Full
a 0.001-mF bypass capacitor) while consuming very
Load, TPS78630)
low quiescent current (265 mA, typical). Moreover,
3 × 3 SON PowerPAD™, 6-Pin SOT223 and
when the device is placed in standby mode, the
5-Pin DDPAK Package
supply current is reduced to less than 1 mA. The
TPS78630 exhibits approximately 48 mVRMS of output
APPLICATIONS
voltage at 3.0-V output noise with a 0.1-mF bypass
RF: VCOs, Receivers, ADCs
capacitor. Applications with analog components that
are noise sensitive, such as portable RF electronics,
Audio
benefit from the high PSRR, low noise features, and
Bluetooth® , Wireless LAN
the fast response time.
Cellular and Cordless Telephones
Handheld Organizers, PDAs
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.
2
PowerPAD is a trademark of Texas Instruments Inc.
3
Bluetooth is a registered trademark of Bluetooth SIG, Inc.
4
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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