Linear LT3471EDD#PBF Switching Voltage Regulator 2.4-16V In/±1 - ±40V Out DFN-10

Description

Linear LT3471EDD#PBF Switching Voltage Regulator 2.4-16V In/±1 - ±40V Out DFN-10
The LT®3471 dual switching regulator combines two 42V, 1.3A switches with error amplifiers that can sense to ground providing boost and inverting capability. The low VCESAT bipolar switches enable the device to deliver high current outputs in a small footprint. The LT3471 switches at 1.2MHz, allowing the use of tiny, low cost and low profile inductors and capacitors. High inrush current at start-up is eliminated using the programmable soft-start function, where an external RC sets the current ramp rate. A constant frequency current mode PWM architecture results in low, predictable output noise that is easy to filter. The LT3471 switches are rated at 42V, making the device ideal for boost converters up to ±40V as well as SEPIC and flyback designs. Each channel can generate 5V at up to 630mA from a 3.3V supply, or 5V at 510mA from four alkaline cells in a SEPIC design. The device can be configured as two boosts, a boost and inverter or two inverters. The LT3471 is available in a low profile (0.75mm) 10-lead 3mm × 3mm DFN package.
SPECIFICATIONS
Manufacturer: Linear Technology
Part Number: LT3471EDD#PBF / LT3471EDD#TRPBF / LT3471EDD / LT3471EDD#TR
Product Category: Switching Voltage Regulators
Mounting Style: SMD/SMT
Package / Case: DFN-10
Topology: Boost, Inverting
Output Voltage: ±1 V - ±40 V
Output Current: 1.3 A
Number of Outputs: 2 Output
Input Voltage MAX: 16 V
Input Voltage MIN: 2.4 V
Quiescent Current: 2.5 mA
Switching Frequency: 1.2 MHz
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature:    + 85 C
Series: LT3471
Input Voltage: 2.4 V to 16 V
Type: Dual Switching Regulator
Shutdown: Shutdown
Operating Supply Current: 2.4 mA
Subcategory: PMIC - Power Management ICs
FEATURES
1.2MHz Switching Frequency
Low VCESAT Switches: 330mV at 1.3A
High Output Voltage: Up to 40V
Wide Input Range: 2.4V to 16V
Inverting Capability
5V at 630mA from 3.3V Input
12V at 320mA from 5V Input
–12V at 200mA from 5V Input
Uses Tiny Surface Mount Components
Low Shutdown Current: <1μA
Low Profi le (0.75mm) 10-Lead 3mm × 3mm DFN Package
APPLICATIONS
Organic LED Power Supply
Digital Cameras
White LED Power Supply
Cellular Phones
Medical Diagnostic Equipment
Local ±5V or ±12V Supply
TFT-LCD Bias Supply
xDSL Power Supply
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