Datasheet

TPS61220, TPS61221, TPS61222
www.ti.com SLVS776A –JANUARY 2009–REVISED APRIL 2014
Electrical Characteristics (continued)
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
V
UVLO
Undervoltage lockout threshold for V
IN
decreasing 0.5 0.7 V
turn off
Overvoltage protection threshold 6.0 7.5 V
Overtemperature protection 140 °C
Overtemperature hysteresis 20 °C
7.6 Typical Characteristics
TABLE OF GRAPHS FIGURE
Maximum Output Current versus Input Voltage (TPS61220, TPS61221, TPS61222) Figure 1
versus Output Current, V
OUT
= 1.8 V, V
IN
= [0.7 V; 1.2 V; 1.5 V] (TPS61220) Figure 2
versus Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V; 3 V] (TPS61221) Figure 3
versus Output Current, V
IN
= [0.7 V; 1.2 V; 2.4V; 3.6 V; 4.2 V] (TPS61222) Figure 4
Efficiency
versus Input Voltage, V
OUT
= 1.8 V, I
OUT
= [100 µA; 1 mA; 10 mA; 50 mA]
Figure 5
(TPS61220)
versus Input Voltage, I
OUT
= [100 µA; 1 mA; 10 mA; 50 mA] (TPS61221) Figure 6
versus Input Voltage, I
OUT
= [100 µA; 1 mA; 10 mA; 50 mA] (TPS61222) Figure 7
Input Current at No Output Load, Device Enabled (TPS61220, TPS61221, TPS61222) Figure 8
versus Output Current, V
OUT
= 1.8 V, V
IN
= [0.7 V; 1.2 V] (TPS61220 ) Figure 9
versus Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V] (TPS61221) Figure 10
Output Voltage
versus Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V; 3.6 V] (TPS61222) Figure 11
versus Input Voltage, Device Disabled, R
LOAD
= [1 kΩ; 10 kΩ] (TPS6122x) Figure 12
Output Voltage Ripple, V
IN
= 0.8 V, V
OUT
= 1.8 V, I
OUT
= 20 mA (TPS61220) Figure 13
Output Voltage Ripple V
IN
= 1.8 V, I
OUT
= 50 mA (TPS61221) Figure 14
Load Transient Response, V
IN
= 1.2 V, I
OUT
= 6 mA to 50 mA (TPS61221) Figure 15
Load Transient Response, V
IN
= 2.4 V, I
OUT
= 14 mA to 126 mA (TPS61222) Figure 16
Line Transient Response, V
IN
= 1.8 V to 2.4 V, R
LOAD
= 100 Ω (TPS61221) Figure 17
Line Transient Response, V
IN
= 2.8 V to 3.6 V, R
LOAD
= 100 Ω (TPS61222) Figure 18
Waveforms
Startup after Enable, V
IN
= 0.7 V, V
OUT
= 1.8 V, R
LOAD
= 150 Ω (TPS61220) Figure 19
Startup after Enable, V
IN
= 0.7 V, R
LOAD
= 150 Ω, (TPS61222) Figure 20
Continuous Current Operation, V
IN
= 1.2 V, V
OUT
= 1.8 V, I
OUT
= 50mA
Figure 21
(TPS61220 )
Discontinuous Current Operation, V
IN
= 1.2 V, V
OUT
= 1.8 V, I
OUT
= 10mA
Figure 22
(TPS61220)
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