Datasheet

TYPICAL CHARACTERISTICS
Table of Graphs
0.01 0.1 1 10 100
I -OutputCurrent-mA
O
0
10
20
30
40
50
60
70
80
90
100
h -Efficiency-%
V =0.7V
I
V =1.2V
I
V =1.5V
I
V =1.8V
O
0
50
100
150
200
250
300
0.7 1.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7
V -InputVoltage-V
I
TPS61221V =3.3V
O
TPS61220V =1.8V
O
TPS61222V =5V
O
MaximumoutputCurrent-mA
TPS61220
TPS61221
TPS61222
SLVS776 – JANUARY 2009 ............................................................................................................................................................................................... www.ti.com
FIGURE
Maximum Output Current vs Input Voltage (TPS61220, TPS61221, TPS61222) 1
vs Output Current, V
OUT
= 1.8 V, V
IN
= [0.7 V; 1.2 V; 1.5 V] (TPS61220) 2
vs Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V; 3 V] (TPS61221) 3
vs Output Current, V
IN
= [0.7 V; 1.2 V; 2.4V; 3.6 V; 4.2 V] (TPS61222) 4
Efficiency
vs Input Voltage, V
OUT
= 1.8 V, I
OUT
= [100 uA; 1 mA; 10 mA; 50 mA]
5
(TPS61220)
vs Input Voltage, I
OUT
= [100 uA; 1 mA; 10 mA; 50 mA] (TPS61221) 6
vs Input Voltage, I
OUT
= [100 uA; 1 mA; 10 mA; 50 mA] (TPS61222) 7
Input Current at No Output Load, Device Enabled (TPS61220, TPS61221, TPS61222) 8
vs Output Current, V
OUT
= 1.8 V, V
IN
= [0.7 V; 1.2 V] (TPS61220 ) 9
vs Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V] (TPS61221) 10
Output Voltage
vs Output Current, V
IN
= [0.7 V; 1.2 V; 2.4 V; 3.6 V] (TPS61222) 11
vs Input Voltage, Device Disabled, R
LOAD
= [1 k Ω ; 10 k Ω ] (TPS6122x) 12
Output Voltage Ripple, V
IN
= 0.8 V, V
OUT
= 1.8 V, I
OUT
= 20 mA (TPS61220) 13
Output Voltage Ripple V
IN
= 1.8 V, I
OUT
= 50mA (TPS61221) 14
Load Transient Response, V
IN
= 1.2 V, I
OUT
= 6 mA to 50 mA (TPS61221) 15
Load Transient Response, V
IN
= 2.4 V, I
OUT
= 14 mA to 126 mA (TPS61222) 16
Line Transient Response, V
IN
= 1.8 V to 2.4 V, R
LOAD
= 100 Ω (TPS61221) 17
Line Transient Response, V
IN
= 2.8 V to 3.6 V, R
LOAD
= 100 Ω (TPS61222) 18
Waveforms
Startup after Enable, V
IN
= 0.7 V, V
OUT
= 1.8 V, R
LOAD
= 150 Ω (TPS61220) 19
Startup after Enable, V
IN
= 0.7 V, R
LOAD
= 150 Ω , (TPS61222) 20
Continuous Current Operation, V
IN
= 1.2 V, V
OUT
= 1.8 V, I
OUT
= 50mA
21
(TPS61220 )
Discontinuous Current Operation, V
IN
= 1.2 V, V
OUT
= 1.8 V, I
OUT
= 10mA
22
(TPS61220)
MAXIMUM OUTPUT CURRENT vs EFFICIENCY vs
INPUT VOLTAGE (TPS61220, TPS61221, TPS61222) OUTPUT CURRENT AND INPUT VOLTAGE (TPS61220)
Figure 1. Figure 2.
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