參數(shù)資料
型號(hào)： MAX1545ETL
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Dual-Phase, Quick-PWM Controllers for Programmable CPU Core Power Supplies
中文描述： SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, QCC40
封裝： 6 X 6 MM, 0.80 MM HEIGHT, TQFN-40
文件頁(yè)數(shù)： 1/43頁(yè)
文件大?。?/td> 826K
代理商： MAX1545ETL
General Description
The MAX1519/MAX1545 are dual-phase, Quick-PWM,
step-down controllers for desktop and mobile Pentium
4
(P4) CPU core supplies. Dual-phase operation reduces
input ripple current requirements and output voltage rip-
ple while easing component selection and layout difficul-
ties. The Quick-PWM control scheme provides
instantaneous response to fast load-current steps. The
MAX1519/MAX1545 include active voltage positioning
with adjustable gain and offset, reducing power dissipa-
tion and bulk output capacitance requirements.
The MAX1519/MAX1545 are intended for two different
notebook CPU core applications: stepping down the bat-
tery directly or stepping down the 5V system supply to
create the core voltage. The single-stage conversion
method allows these devices to directly step down high-
voltage batteries for the highest possible efficiency.
Alternatively, two-stage conversion (stepping down the
5V system supply instead of the battery) at a higher
switching frequency provides the minimum possible
physical size.
The MAX1519/MAX1545 comply with Intel’s P4 specifi-
cations. The switching regulator features soft-start,
power-up sequencing, and soft-shutdown. The
MAX1519/MAX1545 also feature independent four-level
logic inputs for setting the suspend voltage (S0–S1).
The MAX1519/MAX1545 include output undervoltage
protection (UVP), thermal protection, and voltage regula-
tor power-OK (VROK) output. When any of these protec-
tion features detect a fault, the controller shuts down.
Additionally, the MAX1519/MAX1545 include overvoltage
protection.
The MAX1519/MAX1545 are available in low-profile, 40-
pin, 6mm x 6mm thin QFN packages. For other CPU
platforms, refer to the pin-to-pin compatible MAX1544
and MAX1532/MAX1546/MAX1547 data sheets.
Applications
Desktop and Mobile P4 Computers
Multiphase CPU Core Supply
Voltage-Positioned Step-Down Converters
Servers/Desktop Computers
Low-Voltage, Digitally Programmable Power
Supplies
Features
o
Dual-Phase, Quick-PWM Controllers
o
±0.75% V
OUT
Accuracy Over Line, Load, and
Temperature (1.3V)
o
Active Voltage Positioning with Adjustable Gain
and Offset
o
5-Bit On-Board DAC
Mobile: 0.60V to 1.75V Output Range
Desktop: 1.10V to 1.85V Output Range
o
Selectable 100kHz/200kHz/300kHz/550kHz
Switching Frequency
o
4V to 28V Battery Input Voltage Range
o
Adjustable Slew-Rate Control
o
Drive Large Synchronous Rectifier MOSFETs
o
Output Overvoltage Protection (MAX1545 Only)
o
Undervoltage and Thermal-Fault Protection
o
Power Sequencing and Timing
o
Selectable Suspend Voltage (0.675V to 1.45V)
o
Soft-Shutdown
o
Selectable Single- or Dual-Phase Pulse Skipping
M
Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
V
DD
DLM
DHM
LXM
BSTM
VROK
D0
D1
D2
D3
SUS
S0
S1
SHDN
OFS
REF
ILIM
V
CC
TON
TIME
1
2
3
4
5
6
7
8
9
10
1
1
1
1
1
1
1
1
1
2
4
3
3
3
3
3
3
3
3
3
30
29
28
27
26
25
24
23
22
21
F
O
O
C
D
C
G
C
G
C
C
C
V
B
L
D
D
P
C
THIN QFN
MAX1519
MAX1545
TOP VIEW
S
Pin Configuration
Ordering Information
19-2734; Rev 1; 9/03
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
-40
°
C to +100
°
C
-40
°
C to +100
°
C
PIN-PACKAGE
40 Thin QFN 6mm
6mm
40 Thin QFN 6mm
6mm
MAX1519
ETL
MAX1545
ETL
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
Pentium is a registered trademark of Intel Corp.
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PDF描述
MAX1519ETL Dual-Phase, Quick-PWM Controllers for Programmable CPU Core Power Supplies
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1545ETL+ 功能描述:電壓模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1545ETL+T 功能描述:電壓模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1545ETL-T 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1546AETL 制造商:Maxim Integrated Products 功能描述:DUAL-PHASE, QUICK-PWM CONTROLLER FOR IMVP CPU - Rail/Tube
MAX1546AETL+ 制造商:Maxim Integrated Products 功能描述:DUAL-PHASE, QUICK-PWM CONTROLLER FOR IMVP CPU - Rail/Tube
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