Texas Instruments Evaluation Module for TPS7A1601 Low-Dropout Linear Regulator TPS7A1601EVM-046 TPS7A1601EVM-046 데이터 시트
제품 코드
TPS7A1601EVM-046
Iout
Vout
Iout
Vout
PG
EN
Thermal Guidelines and Layout Recommendations
Figure 2. Load Step and Transient Response
4.3
Power Good
shows the operation of the Power Good (PG) output. Vin (6 V) is present and the chip is enabled
(c1, gold) The PG output (C3, blue) goes HIGH approximately 1.5 ms after Vout (C2, red) goes into
regulation.
regulation.
Figure 3. Power Good Operation
5
Thermal Guidelines and Layout Recommendations
Thermal management is a key component of design for any power converter and is especially important
when the power dissipation in the LDO regulator is high. Use the following formula to approximate the
maximum power dissipation for the particular ambient temperature:
when the power dissipation in the LDO regulator is high. Use the following formula to approximate the
maximum power dissipation for the particular ambient temperature:
T
J
= T
A
+ P
D
× θ
JA
4
TPS7A1601EVM-046
SLVU549
–
December 2011
Copyright
©
2011, Texas Instruments Incorporated