Datasheet
ELECTRICAL CHARACTERISTICS
TPS61070 , TPS61071
TPS61072 , TPS61073
www.ti.com
.......................................................................................................................................................... SLVS510C – JULY 2006 – REVISED MARCH 2009
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
Minimum input voltage range for
start-up R
L
= 270 Ω 1.1 1.2
(TPS61070, TPS61071, TPS61072)
Minimum input voltage range for
R
L
= 270 Ω 2.3
start-up (TPS61073)
V
I
V
Input voltage range, after start-up
T
A
= 25 ° C 0.9 5.5
(TPS61070, TPS61071, TPS61072)
Input voltage range, after start-up
2.3 5.5
(TPS61073)
Output voltage range (TPS61070,
1.8 5.5
TPS61071, TPS61072)
V
O
V
Output voltage range (TPS61073) 2.3 5.5
V
(FB)
Feedback voltage 495 500 505 mV
Oscillator frequency (TPS61070,
960 1200 1440
TPS61071, TPS61073)
f kHz
Oscillator frequency (TPS61072) 480 600 720
I
(SW)
Switch current limit VOUT= 3.3 V 500 600 700 mA
Start-up current limit 0.5 × I
SW
mA
Boost switch-on resistance VOUT= 3.3 V 480 m Ω
Rectifying switch-on resistance VOUT= 3.3 V 600 m Ω
Total accuracy (including line and
3%
load regulation)
Line regulation 1%
Load regulation 1%
Quiescent current VBAT 0.5 1 µ A
I
O
= 0 mA, V
(EN)
= VBAT = 1.2 V,
(TPS61070, TPS61071,
VOUT = 3.3 V, T
A
= 25 ° C
VOUT 19 30 µ A
TPS61072)
VBAT 1 1.5 µ A
Quiescent current I
O
= 0 mA, V
(EN)
= 1.8 V, VBAT = 2.4 V,
(TPS61073) VOUT = 5 V, T
A
= 25 ° C
VOUT 30 50 µ A
Shutdown current (TPS61070,
V
(EN)
= 0 V, VBAT = 1.2 V, T
A
= 25 ° C 0.05 0.5 µ A
TPS61071, TPS61072)
Shutdown current (TPS61073) V
(EN)
= 0 V, VBAT = 3.6 V, T
A
= 25 ° C 0.05 1.5 µ A
CONTROL STAGE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
(UVLO)
Undervoltage lockout threshold V
(BAT)
voltage decreasing 0.8 V
EN input low voltage 0.2 × VBAT
(TPS61070, TPS61071, TPS61072)
V
IL
EN input low voltage (TPS61073) 0.4 V
EN input high voltage 0.8 × VBAT
(TPS61070, TPS61071, TPS61072)
V
IH
EN input high voltage (TPS61073) 1.2 V
EN input current Clamped on GND or VBAT 0.01 0.1 µ A
(TPS61070, TPS61071, TPS61072)
EN input current (TPS61073) Clamped on GND or VBAT 0.01 0.3 µ A
Overtemperature protection 140 ° C
Overtemperature hysteresis 20 ° C
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Product Folder Link(s): TPS61070 TPS61071 TPS61072 TPS61073