Datasheet

SLUU194 − May 2004
5
Using the TPS51020
2 Electrical Performance Specifications
A summary of performance specifications for TPS51020EVM−001 is provided in Table 1.
2.1 Performance Specification Summary
Table 1. Performance Specification Summary
(1)
SPECIFICATION
TEST CONDITIONS MIN TYP MAX UNIT
GENERAL
Input voltage range, V
IN(DC)
8 12 20 V
Operating frequency 300 kHz
Input ripple voltage (RMS value) V
IN
= 12 V, I
OUT1
= 6 A, I
OUT2
= 6 A 194 mV
CHANNEL1 (V
O1
, GND)
Maximum output current 8 V ≤ V
IN
≤ 20 V, 6 A
Output voltage 4.85 5.00 5.13 V
Line regulation I
OUT1
= 6 A, 8 V ≤ V
IN
≤ 20 V 0.1%
Load regulation V
IN
= 12 V, 0 A ≤ I
OUT1
≤ 6 A 0.1%
Load transient response voltage change
I
OUT1
rising from 0 A to 5 A 30
mV
P−P
Load transient response voltage change
I
OUT1
falling from 5 A to 0 A 60
mV
P−P
Load transient response recovery time
I
OUT1
rising from 0 A to 5 A 500
s
Load transient response recovery time
I
OUT1
falling from 5 A to 0 A 500
µs
Loop bandwidth I
OUT1
= 6 A, V
IN
= 12 V 14 kHz
Phase margin I
OUT1
= 6 A, V
IN
= 12 V 32 _
Output ripple voltage I
OUT1
= 6 A, V
IN
= 12 V 36 60 mV
P−P
Output rise time I
OUT1
= 6 A, V
IN
= 12 V, V
O1
= 5 V 4.6 ms
Full load efficiency
I
OUT1
= 6 A, I
OUT2
= 0 A, V
IN
= 12 V,
V
O1
= 5 V
93.9%
CHANNEL2 (V
O2
, GND)
Maximum output current 8 V ≤ V
IN
≤ 20 V, 6 A
Output voltage 3.21 3.30 3.38 V
Line regulation I
OUT2
= 6 A, 8 V ≤ V
IN
≤ 20 V 0.1%
Load regulation V
IN
= 12 V, 0 A ≤ I
OUT2
≤ 6 A 0.2%
Load transient response voltage change
I
OUT2
rising from 0 A to 5 A 50
mV
P−P
Load transient response voltage change
I
OUT2
falling from 5 A to 0 A 50
mV
P−P
Load transient response recovery time
I
OUT2
rising from 0 A to 5 A 500
s
Load transient response recovery time
I
OUT2
falling from 5 A to 0 A 500
µs
Loop bandwidth I
OUT2
= 6 A, V
IN
= 12 V 15 kHz
Phase margin I
OUT2
= 6 A, V
IN
= 12 V 41 _
Output ripple voltage I
OUT2
= 6 A, V
IN
= 12 V 34 60 mV
P−P
Output rise time I
OUT2
= 6 A, V
IN
= 12 V, V
O2
= 3.3 V 4.72 ms
Full load efficiency
I
OUT1
= 0 A, I
OUT2
= 6 A, V
IN
= 12 V,
V
O2
= 3.3 V
91.3%
3 TPS51020EVM−001 Circuit Module Schematic
Figure 1 shows the TPS51020EVM−001 circuit module schematic diagram.