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| 型号： | MAX1587CETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | IC POWER MANAGEMENT 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 手持/移动设备 |
| 电源电压： | 2.6 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°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： | 带卷 (TR) |
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19-3089; Rev 4; 4/09
ATION
EVALU
AVAIL
KIT
ABLE
High-Efficiency, Low-I Q PMICs with
Dynamic Core for PDAs and Smart Phones
General Description
The MAX1586/MAX1587 power-management ICs are
optimized for devices using Intel XScale ? microproces-
sors, including Smart Phones, PDAs, internet appli-
ances, and other portable devices requiring substantial
computing and multimedia capability at low power.
The ICs integrate seven high-performance, low-operating-
current power supplies along with supervisory and
management functions. Included are three step-down
DC-DC outputs, three linear regulators, and a seventh
always-on output. DC-DC converters power I/O, DRAM,
and the CPU core. The I/O supply can be preset to
3.3V or adjusted to other values. The DRAM supply on
the A and C devices is preset for 1.8V or 2.5V, while the
MAX1586B DRAM supply is preset for 3.3V or 2.5V. The
DRAM supply on all parts can also be adjusted with
external resistors. The CPU core supply is serial pro-
grammed for dynamic voltage management and, on C
devices, can supply up to 0.9A. Linear-regulated out-
puts are provided for SRAM, PLL, and USIM supplies.
To minimize quiescent current, critical power supplies
have bypass “sleep” LDOs that can be activated when
output current is very low. Other functions include sep-
Features
? Six Regulators in One Package
Step-Down DC-DC for I/O at 1.3A
Step-Down DC-DC for Memory at 0.9A
Step-Down Serial-Programmed DC-DC for CORE
Up to 0.9A
Three LDO Outputs for SRAM, PLL, and USIM
Always-On Output for VCC_BATT
? Low Operating Current
60 μ A in Sleep Mode (Sleep LDOs On)
130 μ A with DC-DCs On (Core Off)
200 μ A All Regulators On, No Load
5 μ A Shutdown Current
? Optimized for XScale Processors
? Backup-Battery Input
? 1MHz PWM Switching Allows Small External
Components
? Tiny 6mm x 6mm, 40-Pin and 7mm x 7mm, 48-Pin
Thin QFN Packages
Ordering Information
arate on/off control for all DC-DC converters, low-bat-
tery and dead-battery detection, a reset and power-OK
output, a backup-battery input, and a two-wire serial
interface.
All DC-DC outputs use fast, 1MHz PWM switching and
small external components. They operate with fixed-fre-
quency PWM control and automatically switch from
PWM to skip-mode operation at light loads to reduce
PART
MAX1586A ETM
MAX1586B ETM
MAX1586C ETM
MAX1587A ETL
MAX1587C ETL
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
48 Thin QFN 7mm x 7mm
48 Thin QFN 7mm x 7mm
48 Thin QFN 7mm x 7mm
40 Thin QFN 6mm x 6mm
40 Thin QFN 6mm x 6mm
operating current and extend battery life. The core out-
put can be forced into PWM mode at all loads to mini-
mize noise. A 2.6V to 5.5V input voltage range allows
1-cell lithium-ion (Li+), 3-cell NiMH, or a regulated 5V
input. The MAX1587 is available in a tiny 6mm x 6mm,
40-pin thin QFN package. The MAX1586 features an
Pin Configurations and Selector Guide appear at end of
data sheet.
Simplified Functional Diagram
additional linear regulator (V6) for VCC_USIM and low-
battery and dead-battery comparators. The MAX1586 is
available in a 7mm x 7mm, 48-pin thin QFN package.
Applications
PDA, Palmtop, and Wireless Handhelds
Third-Generation Smart Cell Phones
Internet Appliances and Web-Books
MAIN BATTERY
BACKUP
BATTERY
nRESET
IN
BKBT
MR
RSO
MAX1586
MAX1587
V1
V2
V3
V4
VCC_IO 3.3V
VCC_MEM 2.5V
VCC_CORE
0.8V TO 1.3V
VCC_PLL 1.3V
nVCC_FAULT
nBATT_FAULT
SYS_EN
PWR_EN
POK
DBO
ON1-2
ON3-6
V5
V6
V7
VCC_SRAM 1.1V
VCC_USIM
0V, 1.8V, 3.0V
VCC_BATT
Intel XScale is a registered trademark of Intel Corp.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
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| MAX1587ETL-T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| MAX1589AETT075+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX1589AETT075+T | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1589AETT100+T | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1589AETT130+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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