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| TPS7A7200-EP_15 Datasheet, PDF (14/28 Pages) Texas Instruments – 2-A, FAST-TRANSIENT, LOW-DROPOUT VOLTAGE REGULATOR | |||
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TPS7A7200-EP
SBVS224A â JUNE 2013 â REVISED JUNE 2013
www.ti.com
OUT
SNS
CFF
FB
PG
50mV
Thermal Pad
IN
EN
SS
NC
1.6V
Optional
32R
50mV
VIN
FB
16R
8R
0.5 V
4R
2R
OUT
SNS
3.2R
CFF
FB
1R
100mV
200mV
400mV
800mV
1.6V
VOUT = 1.8 V = 0.5 V + 100 mV + 400 mV + 800 mV
0.5 V is Vref
VOUT = 0.5 V ´ (1 + 3.2R/1.23R) 1.23R is parallel resistance of 16R, 4R, and 2R.
Figure 36. 1.8-V Configuration
OUT
SNS
CFF
FB
PG
50mV
Thermal Pad
IN
EN
SS
NC
1.6V
Optional
32R
50mV
VIN
FB
16R
8R
0.5 V
4R
2R
OUT
SNS
3.2R
CFF
FB
1R
100mV
200mV
400mV
800mV
1.6V
VOUT = 2.5 V = 0.5 V + 400 mV + 1.6 V
0.5 V is Vref
VOUT = 0.5 V ´ (1 + 3.2R/0.8R) 0.8R is parallel resistance of 4R and 1R.
Figure 37. 2.5-V Configuration
OUT
SNS
CFF
FB
PG
50mV
Thermal Pad
IN
EN
SS
NC
1.6V
Optional
OUT
SNS
CFF
FB
PG
50mV
Thermal Pad
IN
EN
SS
NC
1.6V
Optional
32R
50mV
VIN
FB
16R
8R
0.5 V
4R
2R
OUT
SNS
3.2R
CFF
FB
1R
100mV
200mV
400mV
800mV
1.6V
VOUT = 3.3 V = 0.5 V + 400 mV + 800 mV + 1.6 V
0.5 V is Vref
VOUT = 0.5 V ´ (1 + 3.2R/0.571R) 0.571R is parallel resistance of 4R, 2R, and 1R.
Figure 38. 3.3-V Configuration
32R
50mV
VIN
FB
16R
8R
0.5 V
4R
2R
OUT
SNS
3.2R
CFF
FB
1R
100mV
200mV
400mV
800mV
1.6V
VOUT = 3.5 V = 0.5 V + 200 mV + 400 mV + 800 mV + 1.6 V
0.5 V is Vref
VOUT = 0.5 V ´ (1 + 3.2R/0.533R) 0.533R is parallel resistance of 8R, 4R, 2R, and 1R.
Figure 39. 3.5-V Configuration
14
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