Datasheet

TPS62052, TPS62054
TPS62056, TPS62050, TPS62051
SLVS432E –SEPTEMBER 2002–REVISED JUNE 2011 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
I
= 7.2 V, V
O
= 3.3 V, I
O
= 300 mA, EN = V
I
, T
A
= –40°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUTPUT
Adjustable output voltage
V
O
TPS62050, TPS62051 0.7 6.0 V
range
V
(FB)
Feedback voltage TPS62050, TPS62051 0.5 V
FB leakage current TPS62050, TPS62051 0.02 0.1 µA
Feedback voltage tolerance TPS62050, TPS62051 V
I
= 2.7 V to 10 V, 0 mA< I
O
< 600 mA -3% 3%
TPS62052 V
I
= 2.7 V to 10 V, 0 mA< I
O
< 600 mA -3% 3%
Fixed output voltage
TPS62054 V
I
= 2.7 V to 10 V, 0 mA< I
O
< 600 mA -3% 3%
tolerance
(1)
TPS62056 V
I
= 3.75 V to 10 V, 0 mA< I
O
< 600 mA -3% 3%
Resistance of internal voltage divider for fixed-voltage
700 1000 1300 kΩ
versions
Line regulation V
O
= 3.3 V, V
I
= 5 V to 10 V, I
O
= 600 mA 5.2 mV/V
Load regulation V
I
= 7.2 V; I
O
= 10 mA to 600 mA 0.0045 %/mA
V
I
= 5 V; V
O
= 3.3 V; I
O
= 300 mA 93%
η Efficiency
V
I
= 3.6 V; V
O
= 2.5 V; I
O
= 200 mA 93%
Duty cycle range for main switches 100%
Minimum t
on
time for main switch 100 ns
Shutdown temperature 145 °C
I
O
= 200 mA, V
I
= 5 V, V
o
= 3.3 V,
Start-up time 1 ms
C
o
= 22 µF, L = 10 µH
(1) The worst case r
DS(on)
of the PMOS in 100% mode for an input voltage of 3.3 V is 0.75 Ω. This value can be used to determine the
minimum input voltage if the output current is less than 600 mA with the TPS62056.
4 Submit Documentation Feedback Copyright © 2002–2011, Texas Instruments Incorporated
Product Folder Links: TPS62052 TPS62054 TPS62056 TPS62050 TPS62051