Datasheet
TPS75003-EP
SGLS311A –DECEMBER 2006– REVISED MARCH 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
V
EN1
= V
IN1
, V
EN2
= V
IN2
, V
EN3
= V
IN3
, V
IN1
= V
IN2
= 2.2 V, V
IN3
= 3 V, V
OUT3
= 2.5V, C
OUT1
= C
OUT2
= 47 μF, C
OUT3
= 2.2 μF,
T
A
= -55°C to 125°C, unless otherwise noted. Typical values are at T
A
= 25°C.
PARAMETER CONDITIONS MIN TYP MAX UNIT
Supply and Logic
Input voltage range (IN1, IN2,
V
INX
2.2 6.5 V
IN3)
(1)
Quiescent current, I
Q
= I
DGND
+
I
Q
I
OUT1
= I
OUT2
= I
OUT3
= 0 mA 75 150 μA
I
AGND
I
SHDN
Shutdown supply current V
EN1
= V
EN2
= V
EN3
= 0 V 0.05 3 μA
T
A
= 25°C 1.4
Enable high, enabled
V
IH1, 2
V
(EN1, EN2)
T
A
= Full Range 1.45
T
A
= 25°C 1.14
V
IH3
Enable High, enabled (EN3) V
T
A
= Full Range 1.2
Enable low, shutdown
V
ILX
0 0.3 V
(EN1, EN2, EN3)
Enable pin current (EN1, EN2,
I
ENX
0.01 0.5 μA
EN3)
Buck Controllers 1 and 2
V
OUT1,2
Adjustable output voltage Range
(2)
V
FBX
V
INX
V
V
FB1,2
Feedback voltage (FB1, FB2) 1.22 V
Feedback voltage accuracy
(1)
±2%
(FB1, FB2)
I
FB1,2
Current into FB1, FB2 pins 0.01 0.5 μA
T
A
= 25°C 80 120
Reference voltage for current
V
IS1,2
100 mV
sense
T
A
= Full Range 75 125
I
IS1,2
Current into IS1, IS2 pins 0.01 0.5 μA
Measured with the circuit in Figure 2,
ΔV
OUT%
/ΔV
IN
Line regulation
(1)
0.1 % / V
V
OUT
+ 0.5 V ≤ V
IN
≤ 6.5 V
Measured with the circuit in Figure 2,
ΔV
OUT%
/ΔI
OUT
Load regulation 0.6 % / A
30 mA ≤ I
OUT
≤ 2 A
Measured with the circuit in Figure 2,
n
1,2
Efficiency
(3)
94%
I
OUT
= 1 A
Measured with the circuit in Figure 2,
t
STR1,2
Startup time
(3)
R
L
= 6 Ω, C
OUT
= 100 μF, C
SS
= 2.2 5 ms
nF
V
IN1,2
> 2.5 V 4
Gate driver P-Channel and
R
DS,ON1,2
Ω
N-Channel MOSFET on-resistance
V
IN1,2
= 2.2 V 6
Gate Driver P-Channel and
I
SW1,2
100 mA
N-Channel MOSFET drive current
t
ON
Minimum on time 1.36 1.55 1.84 μs
t
OFF
Minimum off time 0.44 0.65 0.86 μs
(1) To be in regulation, minimum V
IN1
(or V
IN2
) must be greater than V
OUT1,NOM
(or V
OUT2,NOM
) by an amount determined by external
components. Minimum V
IN3
= V
OUT3
+ V
DO
or 2.2 V, whichever is greater.
(2) Maximum V
OUT
is dependent on external components and will be less than V
IN
. Parameter is not production tested.
(3) Depends on external components.
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