Texas Instruments Evaluation Module for TPS7A4001 Low-Dropout Linear Regulator TPS7A4001EVM-709 TPS7A4001EVM-709 Datenbogen

Produktcode

TPS7A4001EVM-709

VOUT

IOUT

VOUT

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Test Results

Test Results

This section provides typical performance waveforms for the TPS7A4001EVM-709 characteristic of this
EVM design.

4.1

Turnon Characteristics

Figure 1

shows the turn-on characteristic where VIN is pre-set to 9V, the output load is set to 50mA, and

the regulator is enabled by a 4.5V step voltage (C1, gold) applied to EN (J1, pin 2). The VOUT softstart
(C4, green) shows a rise time indicative of the R1 and C2 values selected.

Figure 1. Turnon Sequence: C1 EN - Turnon to 4.5V, C4 VOUT – 5V Turnon Ramp Characteristic

4.2

Output Load Transition

Figure 2

shows the VOUT transient response (C2, red) for a full load step transition from 0mA to 50mA

(C1, gold).

Figure 2. Step Load and Output Voltage Transient Response: C1 – Full Load Current Step, C2 VOUT –

Output Voltage Transient Response

SLVU448 – March 2011

TPS7A4001EVM-709

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