Datasheet
TPS61020, TPS61024, TPS61025
TPS61026, TPS61027, TPS61028
TPS61029
www.ti.com
SLVS451F –SEPTEMBER 2003–REVISED APRIL 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
Minimum input voltage for start-up R
L
= 120 Ω 0.9 1.2 V
Input voltage range, after start-up (TPS61020,
0.9 6.5 V
V
I
TPS61024, TPS61025, TPS61027, TPS61028)
Input voltage range, after start-up (TPS61026,
0.9 5.5 V
TPS61029)
TPS61020, TPS61028 and TPS61029 output
V
O
1.8 5.5 V
voltage range
TPS61020, TPS61028 and TPS61029 feedback
V
FB
490 500 510 mV
voltage
f Oscillator frequency 480 600 720 kHz
Switch current limit (TPS61020, TPS61024,
I
SW
VOUT= 3.3 V 1200 1500 1800 mA
TPS61025, TPS61027)
I
SW
Switch current limit (TPS61028) VOUT= 3.3 V 800 mA
I
SW
Switch current limit (TPS61026, TPS61029) VOUT= 3.3 V 1500 1800 2100 mA
Start-up current limit 0.4 x I
SW
mA
SWN switch on resistance VOUT= 3.3 V 260 mΩ
SWP switch on resistance VOUT= 3.3 V 290 mΩ
Total accuracy (including line and load regulation) ±3%
Line regulation 0.6%
Load regulation 0.6%
VBAT 1 3 µA
I
O
= 0 mA, V
EN
= VBAT = 1.2 V,
Quiescent current
VOUT = 3.3 V, T
A
= 25°C
VOUT 25 45 µA
V
EN
= 0 V, VBAT = 1.2 V,
Shutdown current 0.1 1 µA
T
A
= 25°C
CONTROL STAGE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
UVLO
Under voltage lockout threshold V
LBI
voltage decreasing 0.8 V
V
IL
LBI voltage threshold V
LBI
voltage decreasing 490 500 510 mV
LBI input hysteresis 10 mV
LBI input current EN = VBAT or GND 0.01 0.1 µA
V
OL
LBO output low voltage V
O
= 3.3 V, I
OI
= 100 µA 0.04 0.4 V
V
lkg
LBO output leakage current V
LBO
= 7 V 0.01 0.1 µA
V
IL
EN, PS input low voltage 0.2 × VBAT V
V
IH
EN, PS input high voltage 0.8 × VBAT V
EN, PS input current Clamped on GND or VBAT 0.01 0.1 µA
Overtemperature protection 140 °C
Overtemperature hysteresis 20 °C
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Product Folder Link(s): TPS61020 TPS61024 TPS61025 TPS61026 TPS61027 TPS61028 TPS61029