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MAXIM MAX852ISA product image
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MAXIM MAX852ISA

Manufacturer
MAXIM
MPN
MAX852ISA
LCSC Part #
C3745268
Packaging
SOIC-8
Customer #
Key Attributes
5mA Negative 10V SOIC-8 Special Purpose Regulators
Datasheetpdf iconMAXIM MAX852ISA
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QtyUnit Price(Reference Only)Total Amount
1+$ 2.8999$ 2.90
200+$ 1.1234$ 224.68
500+$ 1.0829$ 541.45
1,000+$ 1.0634$ 1063.40
Standard Packaging100/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Special Purpose Regulators
ManufacturerMAXIM
PackagingSOIC-8
FeaturesEnable control
Output Voltage4.1V;500mV~9V
Output TypeFixed;Adjustable
Output Current5mA
Output ConfigurationNegative
Voltage - Supply10V
Operating Temperature-25℃~+85℃@(Ta)
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Introduction

AI Translation

The MAX850-MAX853 low-noise, inverting, charge pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers. The MAX850-MAX852 offer both preset (-4.1V) and adjustable (-0.5V to -9.0V) output voltages. The MAx853 uses an external positive control voltage to set the negative output voltage. Input voltage range for all four devices is 4.5V to 10V. Output current is 5mA. An internal linear regulator reduces the output voltage ripple to 2mVp-p. With a well-filtered control voltage (VcTRL), the MAX853 achieves typical output ripple of less than 1mVp-p. Supply current is 3mA max, and shutdown current is less than 1μA max over temperature (μA max for MAx851).

The MAX850-MAX853 are low-noise, inverting, regulated charge-pump power supplies designed for biasing GaAsFET devices, such as power-amplifier modules in cellular handsets. The applied input voltage (VIN) is first inverted to a negative voltage at NEGOUT by a capacitive charge pump. This voltage is then regulated by an internal linear regulator, and appears at OUT. The minimum (most negative) output voltage (VOUT) achievable is the inverted positive voltage, plus the 1.0V required by the post-regulator. The ripple noise induced by the charge-pump inverter is reduced by the linear regulator to 2mVp-p at VOUT for the MAX850-MAX852. In addition, the excellent AC rejection of the linear regulator attenuates noise on the incoming supply. Up to 5mA is available at OUT.

Features

AI Translation
  • Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
  • 4.5V to 10V Input Voltage Range
  • 2mVp-p Output Voltage Ripple (MAX850 - MAX852)
  • 1mVp-p Output Voltage Ripple (MAX853)
  • 100kHz Charge - Pump Switching Frequency (MAX850/MAX851/MAX853)
  • External Synchronizing Clock Input (MAX852)
  • Logic - Level Shutdown Mode: 1μA Max Over Temperature (MAX850/MAX852/MAX853)
  • Low Cost, 8 - Pin SO Package

Applications

AI Translation
  • Cellular Phones
  • Negative Regulated Power Supplies
  • Personal Communicators, PDAs
  • Wireless Data Loggers
  • Continuously Adjustable GaAsFET Bias
  • LCD - Bias Contrast Control