MAX1586AETM+ by Analog Devices

High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smartphones

Status: Active
Series: MAX1586A
RoHS: Unknown
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The MAX1586/MAX1587 power-management ICs are optimized for devices using Intel XScale® microprocessors, including third-generation smart cell phones, PDAs, internet appliances, 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. Regulator outputs include three step-down DC-DC outputs, three linear regulators, and a seventh always-on output. DC-DC converter outputs power I/O, DRAM, and the CPU core. The I/O supply can be preset to 3.3V or 3.0V, or can be adjusted to other values. The DRAM supply on the MAX1586A and MAX1587A 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 programmed for dynamic voltage management. Linear-regulated outputs are provided for SRAM, PLL, and USIM supplies. To minimize sleep-state quiescent current, critical power supplies have bypass "sleep" LDOs that can be activated to minimize battery drain when output current is very low. Other functions include separate on/off control for all DC-DC converters, low-battery 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-frequency PWM control and automatically switch from PWM to skip-mode operation at light loads to reduce operating current and extend battery life. The core output is capable of operating in forced-PWM mode at all loads to minimize ripple and 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 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.

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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 Three LDO Outputs for SRAM, PLL, and USIM Always-On Output for VCC_BATT
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
Three LDO Outputs for SRAM, PLL, and USIM
Always-On Output for VCC_BATT
Low Operating Current 60µA in Sleep Mode (Sleep LDOs On) 130µA with DC-DCs On (Core Off) 200µA All Regulators On, No Load 5µA Shutdown Current
60µA in Sleep Mode (Sleep LDOs On)
130µA with DC-DCs On (Core Off)
200µA All Regulators On, No Load
5µA Shutdown Current
Optimized for XScale Processors
Backup-Battery Input
Separate ON Controls for Any Desired Power Sequencing
1MHz PWM Switching Allows Small External Components
Tiny 6mm x 6mm, 40-Pin and 7mm x 7mm, 48-Pin Thin QFN Packages

Specifications

VIN (V) (min) 2.6
VIN (V) (max) 5.5
# Step-Down Outputs 3
# LDO Outputs 4
VOUT (V) (min) 0.7
VOUT (V) (max) 5.5
Package/Pins TQFN/48
BudgetaryPrice (See Notes) 5.75


MAX1586AETM+ Semiconductors - ICs by Analog Devices

POWER MANAGEMENT UNIT TQFN-48

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage 5.5V
No. of Step-Down DC - DC Converters 3
No. of LDO Regulators 3
No. of Regulated Outputs 6
Digital IC Case TQFN
No. of Pins 48Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

POWER MANAGEMENT UNIT, TQFN-48 | Farnell

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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