Datasheet

TLV61220
www.ti.com SLVSB53 –MAY 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
V
IN
Input voltage range 0.7 5.5 V
V
IN
Minimum input voltage at startup R
Load
≥ 150 Ω 0.7 V
V
OUT
TLV61220 output voltage range V
IN
< V
OUT
1.8 5.5 V
V
FB
TLV61220 feedback voltage 483 500 513 mV
I
LH
Inductor current ripple 200 mA
V
OUT
= 3.3 V, V
IN
= 1.2 V, T
A
= 25 °C 220 400 mA
I
SW
switch current limit V
OUT
= 3.3 V, T
A
= -40°C to 85 °C 180 400 mA
V
OUT
= 3.3 V, T
A
= 0°C to 85 °C 200 400 mA
V
OUT
= 3.3 V 1000 mΩ
Rectifying switch on resistance,
HSD
V
OUT
= 5 V 700 mΩ
R
DS(on)
V
OUT
= 3.3 V 600 mΩ
Main switch on resistance, LSD
V
OUT
= 5 V 550 mΩ
Line regulation V
IN
< V
OUT
0.5 %
Load regulation V
IN
< V
OUT
0.5 %
V
IN
0.5 0.9 μA
Quiescent
I
Q
I
O
= 0 mA, V
EN
= V
IN
= 1.2 V, V
OUT
= 3.3 V
current
V
OUT
5 7.5 μA
Shutdown
I
SD
V
IN
V
EN
= 0 V, V
IN
= 1.2 V, V
OUT
≥ V
IN
0.2 0.5 μA
current
Leakage current into VOUT V
EN
= 0 V, V
IN
= 1.2 V, V
OUT
= 3.3 V 1 μA
I
LKG
Leakage current into SW V
EN
= 0 V, V
IN
= 1.2 V, V
SW
= 1.2 V, V
OUT
≥ V
IN
0.01 0.2 μA
TLV61220 Feedback input
I
FB
V
FB
= 0.5 V 0.01 μA
current
I
EN
EN input current Clamped on GND or V
IN
(V
IN
< 1.5 V) 0.005 0.1 μA
CONTROL STAGE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IL
EN input low voltage V
IN
≤ 1.5 V 0.2 × V
IN
V
V
IH
EN input high voltage V
IN
≤ 1.5 V 0.8 × V
IN
V
V
IL
EN input low voltage 5 V > V
IN
> 1.5 V 0.4 V
V
IH
EN input high voltage 5 V > V
IN
> 1.5 V 1.2 V
V
UVLO
Undervoltage lockout threshold for V
IN
decreasing 0.5 0.7 V
turn off
Overvoltage protection threshold 5.5 7.5 V
Overtemperature protection 140 °C
Overtemperature hysteresis 20 °C
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Product Folder Link(s): TLV61220