參數(shù)資料
型號(hào)： MAX15003
廠商： Maxim Integrated Products, Inc.
英文描述： Triple-Output Buck Controller with Tracking/Sequencing
中文描述： 三輸出buck控制器，提供跟蹤/排序功能
文件頁(yè)數(shù)： 14/32頁(yè)
文件大?。?/td> 945K
代理商： MAX15003
M
Triple-Output Buck Controller with
Tracking/Sequencing
14
______________________________________________________________________________________
Detailed Description
The MAX15003 is a triple-output, pulse-width-modulat-
ed (PWM), step-down, DC-DC controller with tracking
and sequencing options. The device operates over the
input voltage range of 5.5V to 23V or 5V ±10%. Each
PWM controller provides an adjustable output down to
0.6V and delivers up to 15A load current with excellent
load and line regulation.
Each of the MAX15003 PWM sections utilizes a volt-
age-mode control scheme for good noise immunity and
offers external compensation allowing for maximum
flexibility with a wide selection of inductor values and
capacitor types. The device operates at a fixed switch-
ing frequency that is programmable from 200kHz to
2.2MHz and can be synchronized to an external clock
signal using the SYNC input. Each converter, operating
at up to 2.2MHz with 120° out-of-phase, increases the
input capacitor ripple frequency up to 6.6MHz, reduc-
ing the RMS input ripple current and the size of the
input bypass capacitor requirement significantly.
The MAX15003 provides either coincident tracking,
ratiometric tracking, or sequencing. This allows tailor-
ing of the power-up/power-down sequence depending
on the system requirements.
The MAX15003 features lossless valley-mode current-
limit protection by monitoring the voltage drop across
the synchronous MOSFET’s on-resistance to sense the
inductor current. The MAX15003’s internal current
source exhibits a positive temperature coefficient to help
compensate for the MOSFET’s temperature coefficient.
Use an external voltage-divider when a more precise
current limit is desired. This divider along with a preci-
sion shunt resistor allows for more accurate current limit.
The MAX15003 includes internal undervoltage lockout
with hysteresis, digital soft-start/soft-stop for glitch-free
power-up and power-down of the converters. The
power-on reset (
RESET
) with adjustable timeout period
monitors all three outputs and provides a
RESET
signal
to a system controller/processor indicating when all
outputs are within regulation. Protection features
include lossless valley-mode current limit and hiccup
mode output short-circuit protection.
Functional Diagrams (continued)
V
REF
V
REF
VR
2/3
DOWN2/3
CLK2/3
EN/
TRACK2/3
FB2/3
COMP2/3
EN2/3
RES
OVERLOAD
MANAGEMENT
PWM CONTROLLERS 2 AND 3
EN1
1.24V
ON
1.12V
OFF
OVL
CONFIG
CSP2/3
CSN2/3
ILIM2/3
BST2/3
DH2/3
LX2/3
DREG2/3
DL2/3
PGND2/3
OVL_
EN
CONFIG
R
Q
SET
DOMINANT
S
0.925
x
V
REF
FB2/3
PGPD2/3
DIGITAL
SOFT-START
AND
SOFT-STOP
E/A
CPWM
CLK2/3
LEVEL
SHIFT
RAMP
CURRENT-
LIMIT
SET
CLK2/3
SHDN
EN_
OVL2/3
IMAX2/3
CLK2/3
SEQ_
SEQ_
PGOOD2/3
MAX15003
SEL_
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX15003ATM+ 功能描述:DC/DC 開(kāi)關(guān)控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX15003ATM+T 功能描述:DC/DC 開(kāi)關(guān)控制器 Triple-Out Buck Ctlr w/Track/Sequence RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX15003EVKIT+ 功能描述:電源管理IC開(kāi)發(fā)工具 MAX15003 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX15004AAUE/V+ 功能描述:電流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX15004AAUE/V+T 功能描述:電流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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