Datasheet

Vin=3.3V
Vin=5V
0.01 0.1 1 10
OutputCurrent- A
0
10
20
30
40
50
60
70
80
90
100
Efficiency-%
40
50
60
70
80
90
0
10
20
30
100
Efficiency-%
0
0.5 1.5
2
OutputCurrent- A
1
Vin=3.3V
Vin=5V
70
75
80
85
90
95
50
55
60
65
100
Efficiency-%
0
0.5 1.5
2
OutputCurrent- A
1
Vout=1.05V
Vin=3.3V,
f =1MHz,
T =25°C
s
A
Vout=1.8V
70
75
80
85
90
95
50
55
60
65
100
Efficiency - %
0
0.5 1.5
2
Output Current - A
1
Vin = 5 V,
f = 1 MHz,
T = 25°C
s
A
Vout = 1.8 V
Vout = 1.05 V
Vout = 3.3 V
V =2V/div
IN
EN=1V/div
SS=1V/div
V =1V/div
OUT
Time=5ms/div
V =2V/div
IN
EN=1V/div
SS=1V/div
V =1V/div
OUT
Time=500 s/divm
TPS57112-Q1
SLVSAL8 –DECEMBER 2010 www.ti.com
APPLICATION CURVES
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 35. Figure 36.
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
1 MHz, 3.3 VIN, T
A
= 25°C 1 MHz, 5 VIN, T
A
= 25°C
Figure 37. Figure 38.
POWER UP VOUT, VIN POWER DOWN VOUT, VIN
Figure 39. Figure 40.
26 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS57112-Q1