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200mA Step-Up Converters in 6-Pin SOT23 and TDFN

Product Details

Key Features

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 1.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 1.23
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 0.25
Switch Type Internal
Preset VOUT (V) 3
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
IQ (mA) (typ) 0.003
Shutdown Mode Supply Current (µA) (typ) 0.01
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
1.74
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Simplified Block Diagram

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Parameters

Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 1.5
VIN (V) (max) 5.5
VOUT1 (V) (min) 1.23
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 0.25
Switch Type Internal
Preset VOUT (V) 3
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
IQ (mA) (typ) 0.003
Shutdown Mode Supply Current (µA) (typ) 0.01
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
1.74

Key Features

  • Over 200mA Available Output Current
  • 1.5V to 5.5V Input Voltage Range
  • BATT Connected to OUT in Shutdown for Backup Power
  • Up to 95% Efficiency
  • 7µA Typical Quiescent Current
  • < 1µA Shutdown Supply Current
  • Internal Synchronous Rectifier
  • 750mA Switch Current Limit
  • Active-Low RST Output (MAX8569B)
  • Adjustable Output Voltage (MAX8569A)
  • Fixed 3.0V or 3.3V Output Voltage (MAX8569B)

Applications/Uses

  • Battery Backup
  • Cordless Phones
  • Digital Cameras
  • Local 3.3V to 5V Supplies
  • Medical Diagnostic Equipment
  • PC Cards
  • PDAs and Smartphones

Description

The MAX8569A/MAX8569B low-quiescent-current boost regulators provide up to 200mA at output voltages up to 5.5V from a 1.5V to 5.5V input source. The built-in synchronous rectifier allows for over 90% efficiency while achieving small size and low cost by eliminating the need for an external Schottky diode.

The MAX8569A provides an adjustable output while the MAX8569B is fixed at 3.0V or 3.3V. The MAX8569B features a power-on reset output (active-low RST) to signal that the output has reached regulation. All devices connect the battery input to the output during shutdown, allowing the input battery to be used as a backup or real-time clock supply when the converter is off.

Simplified Block Diagram

MAX8569A, MAX8569B: Typical Operating Circuit MAX8569A, MAX8569B: 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.