MAX8660, MAX8660A, MAX8660B:High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applications

Smallest Size and Highest Efficiency PMIC Solutions for Marvell's PXA3xx Processor

The MAX8660/MAX8661 power management ICs (PMICs) power applications processors (APs) in smart cellular phones, PDAs, Internet appliances, and other portable devices. Four step-down DC-DC outputs, three linear regulators, and an 8th always-on LDO are integrated with power-management functions. Two dynamically controlled DC-DC outputs power the processor core and internal memory. Two other DC-DC converters power I/O, memory, and other peripherals. Additional functions include on/off control for outputs, low-battery detection, reset output, and a 2-wire I²C serial interface. The MAX8661 functions the same as the MAX8660, except it lacks the REG1 step-down regulator and the REG7 linear regulator. All step-down DC-to-DC outputs use fast 2MHz PWM switching and tiny external components. They automatically switch from PWM to high-efficiency, light-load operation to reduce operating current and extend battery life. In addition, a forced-PWM option allows low-noise operation at all loads. Overvoltage lockout protects the device against inputs up to 7.5V.

Key Features
  • Optimized for Marvell's PXA300 and Armada 100 Family of Processors
  • Protected to 7.5V—Shutdown Above 6.3V
  • Four Synchronous Step-Down Converters
    • REG1, REG2, REG3, REG4
  • Four LDO Regulators
    • REG5, REG6, REG7, REG8
  • 2MHz Switching Allows Small Components
  • Low, 20µA Deep-Sleep Current
  • Low-Battery Monitor and Reset Output
MAX8660, MAX8660A, MAX8661: Simplified Functional Diagram
MAX8660, MAX8660A, MAX8661: Simplified Functional Diagram
  • Digital Cameras
  • PDAs, Palmtops, and Wireless Handhelds
  • Personal Media Players
  • Portable GPS Navigation Systems
  • Smart Cell Phones
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MAX8660-MAX8661 Data SheetMAX8660-MAX8661.pdf
Part NumberPrimary TopologyTarget Processor or Spec.Monitor/Control FeaturesDC-DC/Power FeaturesVIN
Oper. Freq.
minmaxminmaxSee Notes
MAX8660Step-DownMarvell/ PXA3xxDynamic V Adj.
Low Batt./POK Output
Reset Output
Serial Interface
Current Limit
Fixed Freq./PWM
Internal Switch
Soft Start
Sync. Rectifier
2.660.7253.31.61.62000TQFN/40$4.84 @1k
MAX8660A2.5TQFN/40$4.84 @1k
MAX86613.3TQFN/40$4.19 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8660AETL+ActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660AETL+TActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660BETL+ActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660BETL+TActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660ETL+ActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660ETL+TActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660ETL/V+ActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660ETL/V+TActiveTQFN,;40 pin;26 mm²-40°C to +85°CLead Free
MAX8660-MAX8661.pdf MAX8661
MAX8660-MAX8661_cn.pdf MAX8661
Adjusting the output voltages of the MAX8660/MAX8661 MAX8661
MAX8660.pdf MAX8660
MAX8660B.pdf MAX8660
简化功能框图 MAX8661