- 您现在的位置：买卖IC网 > PDF目录1838 > MAX1639ESE+T (Maxim Integrated Products)IC REG CTRLR BUCK PWM CM 16-SOIC PDF资料下载
参数资料
| 型号： | MAX1639ESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.2MHz |
| 占空比： | 84% |
| 电源电压： | 4.5 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
KIT MA
EVALU
TA SHE
OLLOW
19-1337; Rev 1; 8/05
NUAL
ATION ET
S DA
F
High-Speed Step-Down Controller with
Synchronous Rectification for CPU Power
________________General Description
The MAX1639 is an ultra-high-performance, step-down
DC-DC controller for CPU power in high-end computer
systems. Designed for demanding applications in which
output voltage precision and good transient response are
critical for proper operation, it delivers over 35A from 1.1V
to 4.5V with ±1% total accuracy from a +5V ±10% supply.
Excellent dynamic response corrects output transients
caused by the latest dynamically clocked CPUs. This
controller achieves over 90% efficiency by using synchro-
nous rectification. Flying-capacitor bootstrap circuitry
drives inexpensive, external N-channel MOSFETs.
The switching frequency is pin-selectable for 300kHz,
600kHz, or 1MHz. High switching frequencies allow the
use of a small surface-mount inductor and decrease out-
put filter capacitor requirements, reducing board area
and system cost.
Output overvoltage protection is enforced by a crowbar
circuit that turns on the low-side MOSFET with 100%
duty factor when the output is 200mV above the normal
regulation point. Other features include internal digital
soft-start, a power-good output, and a 3.5V ±1% refer-
ence output. The MAX1639 is available in a 16-pin
narrow SOIC package.
________________________Applications
Local DC-DC Converters for CPUs
____________________________Features
? Better than ±1% Output Accuracy Over
Line and Load
? Greater than 90% Efficiency Using N-Channel
MOSFETs
? Pin-Selected High Switching Frequency:
300kHz, 600kHz, or 1MHz
? Over 35A Output Current
? Resistor-Divider Adjustable Output from
1.1V to 4.5V
? Current-Mode Control for Fast Transient
Response and Cycle-by-Cycle Current-Limit
Protection
? Short-Circuit Protection with Foldback Current
Limiting
? Crowbar Overvoltage Protection
? Power-Good (PWROK) Output
? Digital Soft-Start
? High-Current (2A) Drive Outputs
__________ Typical Operating Circuit
INPUT
Workstations
Desktop Computers
V CC
AGND
V DD
BST
+5V
LAN Servers
GTL Bus Termination
_______________Ordering Information
TO V DD
MAX1639 DH
LX
PWROK
DL
PGND
OUTPUT
1.1V TO 4.5V
PART
MAX1639ESE
TEMP RANGE
40°C to +85°C
PIN-PACKAGE
16 Narrow SO
MAX1639ESE+
40°C to +85°C
16 Narrow SO
REF
CSH
+ Denotes lead-free packages.
FREQ
CSL
Pin Configuration appears at end of data sheet.
CC1
CC2
FB
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1641EEE+ | IC SW-MODE CUR SOURCE ADJ 16QSOP |
| MAX1644EAE-T | IC REG BUCK SYNC ADJ 2A 16SSOP |
| MAX1651CSA | IC REG CTRLR BUCK PWM 8-SOIC |
| MAX1653EEE-T | IC REG CTRLR BUCK PWM CM 16-QSOP |
| MAX1659ESA+ | IC REG LDO 5V/ADJ .35A 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1639EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit the MAX1639 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX163BCNG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX163BCNG+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX163BCWG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX163BCWG+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
发布紧急采购，3分钟左右您将得到回复。