Datasheet

TPS65070, TPS65072, TPS65073
TPS650731, TPS650732, TPS650701, TPS650702, TPS650721
www.ti.com SLVS950G –JULY 2009–REVISED MAY 2013
DCDC1 CONVERTER
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
VINDCDC1
Input voltage range Connected to SYS pin 2.8 6.3 V
I
O
Maximum output except TPS650701,TPS650702 600 mA
I
O
Maximum output for TPS650701, TPS650702 1200 mA
VINDCDC1 = 2.8 V 150 300
R
DS(ON)
High side MOSFET on-resistance mΩ
VINDCDC1 = 3.5 V 120 200
I
LH
High side MOSFET leakage current VINDCDC1 = 6.3 V 2 μA
VINDCDC1 = 2.8 V 200 300
R
DS(ON)
Low side MOSFET on-resistance mΩ
VINDCDC1 = 3.5 V 160 180
I
LL
Low side MOSFET leakage current V
DS
= 6.3 V 1 μA
for TPS650721, TPS65072, TPS65073,
I
LIMF
Forward current limit 0.8 1.1 1.5 A
TPS650731, TPS650732
I
LIMF
Forward current limit for TPS65070 1.1 1.6 2.2 A
I
LIMF
Forward current limit for TPS650701, TPS650702 1.6 2.2 3.0 A
f
S
Oscillator frequency 1.95 2.25 2.55 MHz
V
out
Fixed output voltage range 0.725 3.3 V
Internal resistor divider, I
2
C selectable
V
out
Default output voltage For TPS65070, TPS65072 3.3
For TPS650721 2.8
V
For TPS65073, TPS650731, TPS650732 1.8
For TPS650701, TPS650702 1.2
VINDCDC1 = VDCDC1 +0.3 V to 6.3 V;
V
out
DC output voltage accuracy; PFM mode
(1)
–2% 3%
0 mA ≤ I
O
≤ 0.6 A
VINDCDC1 = VDCDC1 +0.3 V to 6.3 V;
V
out
DC output voltage accuracy; PWM mode
(1)
–1.5% 1.5%
0 mA ≤ I
O
≤ 0.6 A
ΔV
OUT
Power save mode ripple voltage
(2)
I
OUT
= 1 mA, PFM mode 40 mV
pp
t
Start
Start-up time Time from active EN to Start switching 170 μs
t
Ramp
V
OUT
ramp up time Time to ramp from 5% to 95% of V
OUT
250 μs
Vo -
power good threshold rising voltage
5%
Vo -
power good threshold falling voltage
10%
R
DIS
Internal discharge resistor at L1 –35% 250 35% Ω
(1) Output voltage specification does not include tolerance of external voltage programming resistors. Output voltage in PFM mode is
scaled to +1% of nominal value.
(2) Configuration L= 2.2 μH, C
OUT
= 10 μF
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Product Folder Links: TPS65070 TPS65072 TPS65073 TPS650731 TPS650732 TPS650701 TPS650702
TPS650721