Datasheet

Test Results
4-2
Test Results
4.1 Test Results
Figures 4–1 through 4–9 show the results of various test conditions using the
TPS70151 device. In figures 4–1 through 4–3, channel 1 is regulator 1 output
voltage and channel 4 is the load current. In figures 4–4 through 4–9, channel
1 is regulator 1 output, channel 2 is regulator 2 output, and channel 4 is RESET.
Channel 3 is PG_1 in figures 4–4 through 4–8. Channel 3 is MR1 in figure 4–9.
Figure 4–1. No Load – Full Load (500 mA) Transition With C
O
= 33 µ F POSCAP  – LDO
Settling Time
The load transient settling time of the LDO is approximately 1.5 ms.
Figure 4–2. No Load – Full Load (500 mA) Transition With C
O
= 33 µ F POSCAP  –
LDO Response Time
The load current rise time is 336 ns and the amplifier response time is
approximately 2.4 µs.