USB On-the-Go Transceivers and Charge Pumps

First ±15kV ESD-Protected USB On-the-Go Transceiver and Charge Pump

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The MAX3301E/MAX3302E fully integrated USB On-the-Go (OTG) transceivers and charge pumps allow mobile devices such as PDAs, cellular phones, and digital cameras to interface directly with USB peripherals and each other without the need of a host PC. Use the MAX3301E/MAX3302E with an embedded USB host to directly connect to peripherals such as printers or external hard drives.

The MAX3301E/MAX3302E integrate a USB OTG transceiver, a VBUS charge pump, a linear regulator, and an I²C-compatible, 2-wire serial interface. An internal level shifter allows the MAX3301E/MAX3302E to interface with +1.65V to +3.6V logic supply voltages. The MAX3301E/MAX3302E's OTG-compliant charge pump operates with +3V to +4.5V input supply voltages, and supplies an OTG-compatible output on VBUS while sourcing more than 8mA of output current.

The MAX3301E/MAX3302E enable USB OTG communication from highly integrated digital devices that cannot supply or tolerate the +5V VBUS levels that USB OTG requires. The device supports USB OTG session-request protocol (SRP) and host-negotiation protocol (HNP).

The MAX3301E/MAX3302E provide built-in ±15kV electrostatic-discharge (ESD) protection for the VBUS, ID_IN, D+, and D- terminals. The MAX3301E/MAX3302E are available in 25-bump chip-scale (UCSP™), 25-bump WLP package, 28-pin TQFN, and 32-pin TQFN packages and operate over the extended -40°C to +85°C temperature range.
MAX3301E, MAX3302E: Typical Operating Circuit MAX3301E, MAX3302E: Typical Operating Circuit Enlarge+

Key Features

  • USB 2.0-Compliant Full-/Low-Speed OTG Transceivers
  • Ideal for USB On-the-Go, Embedded Host, or Peripheral Devices
  • ±15kV ESD Protection on ID_IN, VBUS, D+, and D-Terminals
  • Charge Pump for VBUS Signaling and Operation Down to 3V
  • Internal VBUS and ID Comparators
  • Internal Switchable Pullup and Pulldown Resistors for Host/Peripheral Functionality
  • I²C Bus Interface with Command and Status Registers
  • Linear Regulator Powers Internal Circuitry and D+/D- Pullup Resistors
  • Supports SRP and HNP


  • Digital Cameras
  • Mobile Phones
  • MP3 Players
  • PDAs

See parametric specs for USB On-The-Go (OTG) (4)

Part NumberVL
ESD Protect.
Internal OTG Charge PumpInternal Xcvr.VSUPPLY
Package/PinsOper. Temp.
See Notes
MAX3301E 1.65 to 3.615YesNo3.0 to 4.5
UCSP (B)/25
-40 to +85$2.86 @1k
UCSP (B)/25
$2.71 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX3302E 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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