Datasheet

TLV61225
www.ti.com SLVSAF0 –AUGUST 2010
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 0.7 3.3 V
Maximum minimum input voltage
V
IN
R
Load
≥ 150 Ω, T
A
= 25°C 0.7 V
for startup
V
OUT
TLV61225 output voltage V
IN
< V
OUT
3.13 3.30 3.43 V
I
LH
Inductor current ripple 200 mA
I
SW
switch current limit V
OUT
= 3.3 V, V
IN
= 1.2 V 160 400 mA
R
DSon_HSD
Rectifying switch on resistance V
OUT
= 3.3 V 1000 mΩ
R
DSon_LSD
Main switch on resistance V
OUT
= 3.3 V 600 mΩ
Line regulation V
IN
< V
OUT
0.5 %
Load regulation V
IN
< V
OUT
0.5 %
V
IN
0.5 1 mA
Quiescent
I
Q
I
O
= 0 mA, V
EN
= V
IN
= 1.2 V, V
OUT
= 3.3 V
current
V
OUT
5 10 mA
Shutdown
I
SD
V
IN
V
EN
= 0 V, V
IN
= 1.2 V, V
OUT
≥ V
IN
0.2 1 mA
current
I
LKG_VOUT
Leakage current into VOUT V
EN
= 0 V, V
IN
= 1.2 V, V
OUT
= 3.3 V 1 mA
I
LKG_L
Leakage current into L V
EN
= 0 V, V
IN
= 1.2 V, V
L
= 1.2 V, V
OUT
≥ V
IN
0.01 0.7 mA
I
EN
EN input current Clamped on GND or V
IN
(V
IN
< 1.5 V) 0.005 0.1 mA
CONTROL STAGE
V
IN
≤ 1.5 V 0.2 × V
V
IL
maximum EN input low voltage
V
IN
V
IN
≤ 1.5 V 0.8 × V
V
IH
minimum EN input high voltage
V
IN
V
IL
maximum EN input low voltage V
IN
> 1.5 V 0.4 V
V
IH
minimum EN input high voltage V
IN
> 1.5 V 1.2 V
V
UVLO
Undervoltage lockout threshold V
IN
decreasing 500 mV
for turn off
Undervoltage lockout hysteresis 50 mV
Overvoltage protection threshold 5.5 7.5 V
Overtemperature protection 140 °C
Overtemperature hysteresis 20 °C
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