The TPS7A3501 is a positive voltage, low-noise
(3.8-µVRMS) power filter capable of sourcing a 1-A load suitable for quiet supply solutions. Power filters, such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally suited as a noise filter for 3.3-V, 2.5-V, and 1.8-V supplies at up to 1 A.
The input-to-output voltage regulation is also user-programmable, from 200 mV to 500 mV, with a single external resistor. If no resistor is used, the TPS7A3501 provides 330 mV of input-to-output voltage regulation. The device is stable with 10-µF input and output ceramic capacitors and a 10-nF noise-reduction ceramic capacitor.
The TPS7A3501 is fully specified over a wide temperature of 40°C to 125°C. The device is offered in a low thermal resistance, 2-mm × 2-mm, WSON-6 package. Unlike passive filters, the TPS7A3501 provides thermal and current protection for itself and surrounding circuitry.
|Iout (Max) (A)|
|Vin (Max) (V)|
|Vin (Min) (V)|
|Vout (Max) (V)|
|Vout (Min) (V)|
|Regulated outputs (#)|
|Operating temperature range (C)|
|Thermal Resistance θJA (°C/W)|
|Approx. price (US$)|
|Output capacitor type|
|PSRR @ 100 KHz (dB)|
|Vdo (Typ) (mV)|
|Iq (Typ) (mA)|
|Package size: mm2:W x L (PKG)|
|WSON | 6|
Foldback Overcurrent Protection
|-40 to 125|
|0.75 | 1ku|
|See datasheet (WSON)|