Datasheet
TPS75003
www.ti.com
SBVS052I –OCTOBER 2004–REVISED AUGUST 2010
ELECTRICAL CHARACTERISTICS
V
EN1
= V
IN1
, V
EN2
= V
IN2
, V
EN3
= V
IN3
, V
IN1
= V
IN2
= 2.2V, V
IN3
= 3.0V, V
OUT3
= 2.5V, C
OUT1
= C
OUT2
= 47mF, C
OUT3
= 2.2mF,
T
A
= –40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.
PARAMETER CONDITIONS MIN TYP MAX UNIT
Supply and Logic
Input Voltage Range
V
INX
2.2 6.5 V
(IN1, IN2, IN3)
(1)
Quiescent Current, I
Q
= I
DGND
+
I
Q
I
OUT1
= I
OUT2
= 0mA, I
OUT3
= 1mA 75 150 mA
I
AGND
I
SHDN
Shutdown Supply Current V
EN1
= V
EN2
= V
EN3
= 0V 0.05 3.0 mA
Enable High, enabled
V
IH1, 2
1.4 V
INX
V
(EN1, EN2)
V
IH3
Enable High, enabled (EN3) 1.14 V
IN3
V
Enable Low, shutdown
V
ILX
0 0.3 V
(EN1, EN2, EN3)
Enable pin current
I
ENX
0.01 0.5 mA
(EN1, EN2, EN3)
Buck Controllers 1 and 2
Adjustable Output Voltage
V
OUT1,2
V
FBX
V
INX
V
Range
(2)
V
FB1,2
Feedback Voltage (FB1, FB2) 1.220 V
Feedback Voltage Accuracy
(1)
–2 +2 %
(FB1, FB2)
I
FB1,2
Current into FB1, FB2 pins 0.01 0.5 mA
Reference Voltage for Current
V
IS1,2
80 100 120 mV
Sense
I
IS1,2
Current into IS1, IS2 Pins 0.01 0.5 mA
Measured with the circuit in Figure 1,
ΔV
OUT%
/ΔV
IN
Line Regulation
(1)
0.1 % / V
V
OUT
+ 0.5V ≤ V
IN
≤ 6.5V
ΔV
OUT%
/ΔI
OU
Measured with the circuit in Figure 1,
Load Regulation 0.6 % / A
T
30mA ≤ I
OUT
≤ 2A
Measured with the circuit in Figure 1,
n
1,2
Efficiency
(3)
94 %
I
OUT
= 1A
Measured with the circuit in Figure 1,
t
STR1,2
Startup Time
(3)
5 ms
R
L
= 6Ω, C
OUT
= 100mF, C
SS
= 2.2nF
Gate Driver P-Channel and V
IN1,2
> 2.5V 4
R
DS,ON1,2
N-Channel MOSFET Ω
V
IN1,2
= 2.2V 6
On-Resistance
Gate Driver P-Channel and
I
SW1,2
N-Channel MOSFET Drive 100 mA
Current
t
ON
Minimum On Time 1.36 1.55 1.84 ms
t
OFF
Minimum Off Time 0.44 0.65 0.86 ms
(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 2.2V, whichever is greater.
(2) Maximum V
OUT
depends on external components and will be less than V
IN
.
(3) Depends on external components.
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