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参数资料
| 型号： | MAX1545ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/43页 |
| 文件大小： | 0K |
| 描述： | IC QUICK-PWM DUAL-PHASE 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，Intel Pentium? IV |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 1.85 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 管件 |
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ATION
EVALU
AVAIL
19-2734; Rev 1; 9/03
KIT
ABLE
Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
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
Features
? Dual-Phase, Quick-PWM Controllers
? ±0.75% V OUT Accuracy Over Line, Load, and
Temperature (1.3V)
? Active Voltage Positioning with Adjustable Gain
and Offset
? 5-Bit On-Board DAC
Mobile: 0.60V to 1.75V Output Range
Desktop: 1.10V to 1.85V Output Range
? Selectable 100kHz/200kHz/300kHz/550kHz
Switching Frequency
? 4V to 28V Battery Input Voltage Range
? Adjustable Slew-Rate Control
? Drive Large Synchronous Rectifier MOSFETs
? Output Overvoltage Protection (MAX1545 Only)
? Undervoltage and Thermal-Fault Protection
? Power Sequencing and Timing
? Selectable Suspend Voltage (0.675V to 1.45V)
? Soft-Shutdown
? Selectable Single- or Dual-Phase Pulse Skipping
Ordering Information
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.
PART TEMP RANGE
MAX1519 ETL -40°C to +100°C
MAX1545 ETL -40°C to +100°C
PIN-PACKAGE
40 Thin QFN 6mm ? 6mm
40 Thin QFN 6mm ? 6mm
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
TOP VIEW
Pin Configuration
Desktop and Mobile P4 Computers
Multiphase CPU Core Supply
Voltage-Positioned Step-Down Converters
TIME
TON
SUS
S0
1
2
3
4
30
29
28
27
V DD
DLM
DHM
LXM
Servers/Desktop Computers
Low-Voltage, Digitally Programmable Power
Supplies
S1
SHDN
OFS
REF
ILIM
V CC
5
6
7
8
9
10
MAX1519
MAX1545
26
25
24
23
22
21
BSTM
VROK
D0
D1
D2
D3
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
Pentium is a registered trademark of Intel Corp.
THIN QFN
________________________________________________________________ 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1545ETL+ | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1545ETL+T | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1545ETL-T | 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装: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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