0
ACTIVE
Rating |
Catalog |
Topology |
Inverting, Inverting Buck |
Iout (max) (A) |
1 |
Vin (max) (V) |
14 |
Vin (min) (V) |
3.1 |
Vout (max) (V) |
-1 |
Vout (min) (V) |
-5.5 |
Switch current limit (typ) (A) |
2.1 |
Features |
Enable, Output discharge, Power good, Synchronous Rectification, UVLO Fixed |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.015 |
Duty cycle (max) (%) |
70 |
WSON (DRR)-12-9 mm² 3 x 3
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.
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