TPS63710 Texas instruments

TPS63710

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TPS63710

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Описание

The TPS63710 is an inverting step-down dc-dc converter generating a negative output voltage down to -5.5 V. It provides an output current up to 1 A, depending on the input-voltage to output-voltage ratio. Its filtered reference system gives low 1/f noise which is required in high performance telecommunication systems.The TPS63710 operates with a fixed-frequency PWM control topology. It has an internal current limit and a thermal shutdown. The input voltage range of 3.1 V to 14 V allows the TPS63710 to be used in a variety of applications where a negative output voltage is generated from a, in absolute value, higher positive input voltage. Synchronous rectification provides high efficiency especially for small output voltages like -1.8 V, which are typically used as a negative supply voltage for high performance DACs and ADCs. A fixed switching frequency of 1.5 MHz allows the use of small external components and enables a small total solution size. The TPS63710 comes in a 3-mm × 3-mm WSON package that provides good thermal performance in applications running at high ambient temperature.

3.1 V to 14 V Input Voltage Range
1 A Output Current
Up to 91% Efficiency
±1.5% Output Voltage Accuracy
Synchronous Rectification
Low 1/f-Noise Reference System
Noise: 22 µV_RMS (10 Hz to 100 kHz)
Output Voltage: -1 V to -5.5 V
|V_OUT| < 0.7 x V_IN
1.5-MHz fixed frequency PWM mode
Thermal Shutdown
5-µA Shutdown Current
3-mm × 3-mm WSON Package
Create a Custom Design Using the TPS63710 With the WEBENCH^® Power Designer

Topology	Inverting, Inverting Buck
Vin (min) (V)	3.1
Vin (max) (V)	14
Vout (max) (V)	-1
Vout (min) (V)	-5.5
Duty cycle (max) (%)	70
Features	Enable, Output discharge, Power good, Synchronous Rectification, UVLO Fixed
Switch current limit (typ) (A)	2.1
Switching frequency (min) (kHz)	1400
Switching frequency (max) (kHz)	1600
Iq (typ) (mA)	15
Iout (max) (A)	1
Rating	Catalog
Operating temperature range (°C)	-40 to 125
Type	Converter