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12V、30mA闪存存储器编程电源

12V无电感、小外形闪存电源,封装在0.1平方英寸

产品详情

主要特征

应用/用途

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
ICC (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)
2.29
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参量

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
ICC (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)
2.29

主要特征

  • 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

应用/用途

  • +12V闪存编程电源
  • 紧凑的+12V运放电源
  • 双输出:+12V与+20V电源
  • 低压系统中的开关MOSFET

描述

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.

简化框图

MAX662A:典型工作电路 MAX662A:典型工作电路 Zoom icon

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