Datasheet
TPS61260, TPS61261
www.ti.com
SLVSA99A –MAY 2011–REVISED FEBRUARY 2013
RECOMMENDED OPERATING CONDITIONS
MIN NOM MAX UNIT
Input Supply voltage at VIN 0.8 4.0 V
Operating free air temperature range, T
A
–40 85 °C
Operating junction temperature range, T
J
–40 125 °C
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)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC/DC STAGE
V
IN
Input voltage range 0.8 4.0 V
V
IN
Minimum input voltage for startup 0.8 V
V
OUT
TPS61260 output voltage range 1.8 4.0 V
V
FB
TPS61260 feedback voltage -40°C < T
J
< 85°C 495 500 505 mV
V
OUT
TPS61261 output voltage 3.27 3.3 3.33 V
7 x
I
LIM
Average switch current limit mA
I
OUT
R
DS(on)
High side switch on resistance V
IN
= 1.2 V, V
OUT
= 3.3 V 1000 mΩ
R
DS(on)
Low side switch on resistance V
IN
= 1.2 V, V
OUT
= 3.3 V 250 mΩ
Output voltage line regulation PWM mode 0.5%
Output voltage load regulation PWM mode 0.5%
I
OUT
Average output current programming range 10 100 mA
Average output current R
I
= 10 kΩ, T
A
= 25 °C, V
IN
< V
OUT
19 20 21 mA
Average output current R
I
= 10 kΩ, 0°C < T
J
< 60°C, V
IN
< V
OUT
18 20 22 mA
Average output current line regulation 0.5%
Average output current load regulation 0.5%
VIN 4 7 μA
I
O
= 0 mA, V
EN
= V
IN
= 1.2 V,
Quiescen
I
Q
t current
V
OUT
= 3.3 V, Device not switching
VOUT 25 40 μA
TPS61261 FB pin input impedance V
EN
= HIGH 1 MΩ
I
SD
Shutdown current V
EN
= 0 V, V
IN
= 1.2 V 0.1 1.5 μA
CONTROL STAGE
V
UVLO
Under voltage lockout threshold Falling V
IN
0.6 0.7 0.8 V
V
UVLO
Under voltage lockout threshold hysteresis 200 mV
V
IN
≤ 1.8 V, -40°C < T
J
< 85°C 0.2 × V
V
IL
Low level input threshold voltage (EN)
V
IN
V
IL
Low level input threshold voltage (EN) V
IN
> 1.8 V, -40°C < T
J
< 85°C 0.36 V
V
IN
≤ 1.5 V 0.8 × V
V
IH
High level input threshold voltage (EN)
V
IN
V
IH
High level input threshold voltage (EN) V
IN
> 1.5 V 1.2 V
I
LKG
Input leakage current (EN) EN = GND or VIN 0.01 0.1 μA
V
OVP
Output overvoltage protection 4.0 4.5 V
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