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參數(shù)資料
| 型號(hào)： | TPS55386PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 7 A DUAL SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, HTSSOP-26 |
| 文件頁數(shù)： | 1/45頁 |
| 文件大?。?/td> | 1197K |
| 代理商： | TPS55386PWPR |
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1
FEATURES
CONTENTS
DESCRIPTION
APPLICATIONS
1
2
3
4
16
15
14
13
PVDD2
BOOT2
SW2
BP
PVDD1
BOOT1
SW1
GND
TPS55383
5
6
7
12
11
10
SEQ
ILIM2
FB2
EN1
EN2
FB1
OUTPUT1
OUTPUT2
V
IN
UDG-08045
8
9
COMP2
COMP1
www.ti.com ......................................................................................................................................................................................... SLUS818 – SEPTEMBER 2008
3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET
AND EXTERNAL COMPENSATION
23
4.5-V to 28-V Input Range
2
Output Voltage 0.8 V to 90% of Input Voltage
4
10
Output Current Up to 3 A
13
Two Fixed Switching Frequency Versions:
30
–
TPS55383: 300 kHz
39
–
TPS55386: 600 kHz
Three Selectable Levels of Overcurrent
Protection (Output 2)
The TPS55383 and TPS55386 are dual output,
0.8-V 1.75% Voltage Reference
non-synchronous
buck
converters
capable
of
2.1-ms Internal Soft Start
supporting 3-A output applications that operate from a
Dual PWM Outputs 180° Out-of-Phase
4.5-V to 28-V input supply voltage, and require output
voltages between 0.8 V and 90% of the input voltage.
Ratiometric or Sequential Startup Modes
Configurable as Dual Output or Two-Channel
With an internally-determined operating frequency
Single Output Multiphase for 6 amp Capability
and soft start time, these converters provide many
features with a minimum of external components. The
85-m Internal High-Side MOSFETs
outputs of the two error amplifiers are accessible
Current Mode Control with External
allowing user optimization of the feedback loop under
Compensation
a
wide
range
of
output
filter
characteristics.
Pulse-by-Pulse Overcurrent Protection
Channel 1 overcurrent protection is set at 4.5 A, while
Channel 2 overcurrent protection level is selected by
Thermal Shutdown Protection at +148°C
connecting a pin to ground, to BP, or left floating. The
16-Pin PowerPAD HTSSOP package
setting levels are used to allow for scaling of external
components for applications that do not need the full
load capability of both outputs.
Set Top Box
The outputs may be enabled independently, or
Digital TV
configured to allow either ratiometric or sequential
Power for DSP
startup sequencing. Additionally, the two outputs may
be powered from different sources.
Consumer Electronics
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.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2008, 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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