Datasheet

TPS63036
www.ti.com SLVSB76 –AUGUST 2012
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature
range of 25°C) (unless otherwise noted)
DC/DC STAGE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range 1.8
(1)
5.5 V
V
OUT
TPS63036 output voltage range 1.2 5.5 V
Duty cycle in step down conversion 20%
V
FB
TPS63036 feedback voltage PS/SYNC = VIN Io<5mA 495 500 505 mV
PS/SYNC = GND Referenced to 500mV
V
FB
TPS63036 feedback voltage -3% +6%
Io<5mA
Load Regulation PS/SYNC = GND 0.008 %/mA
f Oscillator frequency 1800 2000 2200 kHz
Frequency range for synchronization 2200 2400 2600 kHz
I
SW
Average input current limit V
IN
= 3.6 V, T
A
= 25°C
(2)
1000 mA
High side switch on resistance V
IN
= 3.6 V 200 mΩ
Low side switch on resistance V
IN
= 3.6 V 200 mΩ
Line regulation 0.5%
VIN 25 35 μA
Quiescent I
O
= 0 mA, V
EN
= V
IN
= 3.6 V,
I
q
current V
OUT
= 3.3 V
VOUT 4 6 μA
I
S
Shutdown current V
EN
= 0 V, V
IN
= 3.6 V 0.1 0.9 μA
CONTROL STAGE
Under voltage lockout threshold falling 1.4 1.5 1.6 V
V
UVLO
Under voltage lockout threshold raising 1.6 1.8 2.0 V
V
IL
EN, PS/SYNC input low voltage 0.4 V
V
IH
EN, PS/SYNC input high voltage 1.2 V
EN, PS/SYNC input current Clamped on GND or VIN 0.01 0.1 μA
Overtemperature protection 140 °C
Overtemperature hysteresis 20 °C
(1) The typical required supply voltage for startup is 2V. The part is functional down to 1.8V.
(2) For the minimum specified average input current limit at V
OUT
= 2.5V, 3.3V and 4.5V refer to curve in Figure 3. For the maximum
specified average input current limit at V
OUT
= 2.5V, 3.3V and 4.5V refer to curve in Figure 4.
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