www.ti.com
TPS62040
TPS62042, TPS62043
TPS62044, TPS62046
SLVS463B
−
JUNE 2003
−
REVISED OCTOBER 2005
ELECTRICAL CHARACTERISTICS
SUPPLY CURRENT
PARAMETER
V
I
I
(Q)
I
SD
V
UVLO
V
EN
V
EN
I
EN
V
(MODE)
V
(MODE)
I
(MODE)
Input voltage range
Operating quiescent current
Shutdown supply current
Under−voltage lockout threshold
EN high level input voltage
EN low level input voltage
EN input bias current
MODE high level input voltage
MODE low level input voltage
MODE input bias current
P-channel MOSFET on−resistance
P-channel MOSFET on−resistance
P-channel leakage current
N-channel MOSFET on−resistance
N-channel MOSFET on−resistance
N-channel leakage current
P-channel current limit
Thermal shutdown
OSCILLATOR
f
S
OUTPUT
V
O
V
ref
V
FB
Adjustable output voltage range
Reference voltage
Feedback voltage
Oscillator frequency
V
I
= 3.6 V, V
O
= 1.8 V, I
O
= 600 mA, EN = VIN, T
A
=
−40°C
to 85°C
,
typical values are at T
A
= 25°C (unless otherwise noted)
(1)
TEST CONDITIONS
I
O
= 0 mA, device is not switching
EN = GND
1.5
1.4
0.4
EN = GND or VIN
1.4
0.4
MODE = GND or VIN
V
I
= V
GS
= 3.6 V
V
I
= V
GS
= 2.5 V
V
DS
= 6.0 V
V
I
= V
GS
= 3.6 V
V
I
= V
GS
= 2.5 V
V
DS
= 6.0 V
2.5 V < V
I
< 6.0 V
1.5
1.85
150
V
FB
= 0.5 V
V
FB
= 0 V
TPS62040
TPS62040
Adjustable
TPS62042
1.5V
TPS62043
1.6V
TPS62044
1.8V
TPS62046
3.3V
Line regulation
Load regulation
I
Ikg(SW)
f
(1)
MIN
2.5
TYP
18
0.1
MAX
6.0
35
1
2.3
UNIT
V
µA
µA
V
V
V
µA
V
V
µA
mΩ
mΩ
µA
mΩ
mΩ
µA
A
°C
ENABLE AND MODE
0.01
1.0
0.01
115
145
85
115
1.0
210
270
1
200
280
1
2.2
POWER SWITCH
r
DS(ON)
I
lkg(P)
r
DS(ON)
I
Ikg(N)
I
L
1
1.25
625
1.5
MHz
kHz
0.7
0.5
V
I
= 2.5 V to 6.0 V; I
O
= 0 mA
V
I
= 2.5 V to 6.0 V; 0 mA
≤
I
O
≤
1.2 A
V
I
= 2.5 V to 6.0 V; I
O
= 0 mA
V
I
= 2.5 V to 6.0 V; 0 mA
≤
I
O
≤
1.2 A
V
I
= 2.5 V to 6.0 V; I
O
= 0 mA
V
I
= 2.5 V to 6.0 V; 0 mA
≤
I
O
≤
1.2 A
V
I
= 2.5 V to 6.0 V; I
O
= 0 mA
V
I
= 2.5 V to 6.0 V; 0 mA
≤
I
O
≤
1.2 A
V
I
= 3.6 V to 6.0 V; I
O
= 0 mA
V
I
= 3.6 V to 6.0 V; 0 mA
≤
I
O
≤
1.2 A
V
I
= V
O
+ 0.5 V (min. 2.5 V) to 6.0 V,
I
O
= 10 mA
I
O
= 10 mA to 1200 mA
V
I
>V
O
, 0 V
≤
Vsw
≤
V
I
V
I
= open; EN = GND; V
SW
= 6.0 V
V
FB
= 0 V
0%
−3%
0%
−3%
0%
−3%
0%
−3%
0%
−3%
0
0
0.1
0.1
625
V
IN
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
V
V
V
O
Fixed output voltage
%/V
%/mA
1
1
µA
µA
kHz
Leakage current into SW pin
Reverse leakage current into pin SW
Short circuit switching frequency
The line and load regulations are digitally controlled to assure an output voltage accuracy of
±3%.
3
TI [ TEXAS INSTRUMENTS ]
