5
TPS61040
,
TPS61041
www.ti.com
SLVS413I –OCTOBER 2002–REVISED DECEMBER 2016
Product Folder Links: TPS61040 TPS61041
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(1) The line and load regulation depend on the external component selection. See the application section for further information.
6.5 Electrical Characteristics
V
IN
= 2.4 V, EN = V
IN
, T
A
= –40°C to 85°C, typical values are at T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
V
IN
Input voltage range 1.8 6 V
I
Q
Operating quiescent current I
OUT
= 0 mA, not switching, V
FB
= 1.3 V 28 50 μA
I
SD
Shutdown current EN = GND 0.1 1 μA
V
UVLO
Undervoltage lockout threshold 1.5 1.7 V
ENABLE
V
IH
EN high level input voltage 1.3 V
V
IL
EN low level input voltage 0.4 V
I
I
EN input leakage current EN = GND or V
IN
0.1 1 μA
POWER SWITCH AND CURRENT LIMIT
Vsw Maximum switch voltage 30 V
t
off
Minimum off time 250 400 550 ns
t
on
Maximum on time 4 6 7.5 μs
R
DS(on)
MOSFET on-resistance V
IN
= 2.4 V; I
SW
= 200 mA; TPS61040 600 1000 mΩ
R
DS(on)
MOSFET on-resistance V
IN
= 2.4 V; I
SW
= 200 mA; TPS61041 750 1250 mΩ
MOSFET leakage current V
SW
= 28 V 1 10 μA
I
LIM
MOSFET current limit TPS61040 350 400 450 mA
I
LIM
MOSFET current limit TPS61041 215 250 285 mA
OUTPUT
V
OUT
Adjustable output voltage range V
IN
28 V
V
ref
Internal voltage reference 1.233 V
I
FB
Feedback input bias current V
FB
= 1.3 V 1 μA
V
FB
Feedback trip point voltage 1.8 V ≤ V
IN
≤ 6 V 1.208 1.233 1.258 V
Line regulation
(1)
1.8 V ≤ V
IN
≤ 6 V; V
OUT
= 18 V; I
load
= 10 mA;
C
FF
= not connected
0.05 %/V
Load regulation
(1)
V
IN
= 2.4 V; V
OUT
= 18 V; 0 mA ≤ I
OUT
≤ 30 mA 0.15 %/mA
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