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12V, 30mA Flash Memory Programming Supply

12V Inductorless, Low-Profile Flash Memory Supply Fits in 0.1 Sq. Inch

Product Details

Key Features

Parametric specs for Charge Pumps
Topology Regulated
VIN (V) (min) 4.5
VIN (V) (max) 5.5
IOUT (A) (typ) 0.03
Unadj. VOUT (V) 12
IQ (mA) (max) 0.5
Switching Frequency (kHz) 500
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
2.45
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Simplified Block Diagram

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Parameters

Parametric specs for Charge Pumps
Topology Regulated
VIN (V) (min) 4.5
VIN (V) (max) 5.5
IOUT (A) (typ) 0.03
Unadj. VOUT (V) 12
IQ (mA) (max) 0.5
Switching Frequency (kHz) 500
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
2.45

Key Features

  • Regulated +12V ±5% Output Voltage
  • 4.5V to 5.5V Supply Voltage Range
  • Fits in 0.1in²
  • Guaranteed 30mA Output
  • No Inductor—Uses Only 4 Capacitors
  • 185µA Quiescent Current
  • Logic-Controlled 0.5µA Shutdown
  • 8-Pin Narrow SO and DIP Packages

Applications/Uses

  • +12V Flash Memory Programming Supplies
  • Compact +12V Op-Amp Supplies
  • Dual-Output +12V and +20V Supplies
  • Switching MOSFETs in Low-Voltage Systems

Description

The MAX662A is a regulated +12V, 30mA-output, charge-pump DC-DC converter. It provides the necessary +12V ±5% output to program byte-wide flash memories, and requires no inductors to deliver a guaranteed 30mA output from inputs as low as 4.75V. It fits into less than 0.1in² of board space. The MAX662A is a pin-compatible upgrade to the MAX662, and is recommended for new designs. The MAX662A offers lower quiescent and shut-down currents, and guarantees the output current over all temperature ranges.

The MAX662A is the first charge-pump boost converter to provide a regulated +12V output. It requires only a few inexpensive capacitors, and the entire circuit is completely surface-mountable.

A logic-controlled shutdown pin that interfaces directly with microprocessors reduces the supply current to only 0.5µA. The MAX662A comes in 8-pin narrow SO and DIP packages.

For higher-current flash memory programming solutions, refer to the data sheets for the MAX734 (120mA output current, guaranteed) and MAX732 (200mA output current, guaranteed) PWM, switch-mode DC-DC converters.

Or, refer to the MAX761 data sheet for a 150mA, PFM switch-mode DC-DC converter that operates from inputs as low as 2V.

Simplified Block Diagram

MAX662A: Typical Operating Circuit MAX662A: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.