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Dual-Output (+ and -) DC-DC Converters for CCD

Small, 3mm x 3mm TDFN Package

Product Details

Key Features

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# Step-Up Outputs 1
# Inverting Outputs 1
VOUT (V) (min) -13
VOUT (V) (max) 24
Package/Pins TDFN/14
Parametric specs for Inverting Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 3
VOUT1 (V) (max) 24
IOUT1 (A) (max) 0.125
Switch Type Internal
Output Adjust. Method Resistor
# DC-DC Outputs 2
Alternate Topology Step-Up
Switching Frequency (kHz) 1000
Power Good Signal Yes
Package/Pins TDFN/14
Budgetary
Price (See Notes)
1.68
View Less
Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 3
VOUT1 (V) (max) 24
IOUT1 (A) (max) 0.125
Switch Type Internal
Output Adjust. Method Resistor
Power Good Signal Yes
IQ (mA) (typ) 0.4
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 5
# DC-DC Outputs 2
Switching Frequency (kHz) 1000
Package/Pins TDFN/14
View Less

Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# Step-Up Outputs 1
# Inverting Outputs 1
VOUT (V) (min) -13
VOUT (V) (max) 24
Package/Pins TDFN/14
Parametric specs for Inverting Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 3
VOUT1 (V) (max) 24
IOUT1 (A) (max) 0.125
Switch Type Internal
Output Adjust. Method Resistor
# DC-DC Outputs 2
Alternate Topology Step-Up
Switching Frequency (kHz) 1000
Power Good Signal Yes
Package/Pins TDFN/14
Budgetary
Price (See Notes)
1.68
Parametric specs for Step-Up Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 3
VOUT1 (V) (max) 24
IOUT1 (A) (max) 0.125
Switch Type Internal
Output Adjust. Method Resistor
Power Good Signal Yes
IQ (mA) (typ) 0.4
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 5
# DC-DC Outputs 2
Switching Frequency (kHz) 1000
Package/Pins TDFN/14

Key Features

  • Dual Output Voltages (+ and -)
  • Adjustable Up to +24V and Down to -10V at 5.5VIN
  • Output Short/Overload Protection
  • True Shutdown on Both Outputs
  • Controlled Inrush Current During Soft-Start
  • Selectable Power-On Sequencing
  • Up to 90% Efficiency
  • 1µA Shutdown Current
  • 1MHz Fixed-Frequency PWM Operation
  • Fault-Condition Flag
  • Thermal Shutdown
  • Small, 3mm x 3mm, 14-Pin TDFN Package

Applications/Uses

  • Camcorders and Portable Multimedia
  • CCD Bias Supplies and OLED Displays
  • Digital Cameras
  • PDAs and Smartphones

Description

The MAX8614A/MAX8614B dual-output step-up DC-DC converters generate both a positive and negative supply voltage that are each independently regulated. The positive output delivers up to 50mA while the inverter supplies up to 100mA with input voltages between 2.7V and 5.5V. The MAX8614A/MAX8614B are ideal for powering CCD imaging devices and displays in digital cameras and other portable equipment.

The MAX8614A/MAX8614B generate an adjustable positive output voltage up to +24V and a negative output down to 16V below the input voltage. The MAX8614B has a higher current limit than the MAX8614A. Both devices operate at a fixed 1MHz frequency to ease noise filtering in sensitive applications and to reduce external component size.

Additional features include pin-selectable power-on sequencing for use with a wide variety of CCDs, True Shutdown™, overload protection, fault flag, and internal soft-start with controlled inrush current.

The MAX8614A/MAX8614B are available in a spacesaving 3mm x 3mm 14-pin TDFN package and are specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX8614A, MAX8614B: Typical Operating Circuit MAX8614A, MAX8614B: 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.