Texas Instruments TPS65720EVM, Руководство пользователя

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TPS65720EVM Electrical Performance Specifications
2 TPS65720EVM Electrical Performance Specifications
Table 1. TPS65720EVM Electrical and Performance Specifications
Parameter Symbol Notes and Conditions Min Typ Max Unit
Input Characteristics
Input Voltage AC V
AC
4.35 28 V
Input Voltage DCDC1 V
IN_DCDC1
2.1 5.6 V
Input Voltage LDO1 V
IN_LDO1
1.8 6.6 V
Bit <AC input current1, AC input current0> = 00
90 95 100
Input Current I
AC,max
mA
Bit <AC input current1, AC input current0> = 01 or 10
450 475 500
UVLO V
UVLO
V
AC
rising 3.2 3.3 3.45 V
UVLO Hysteresis V
HYS-UVLO
V
AC
falling 200 300 mV
Output Characteristics
Voltage Range at SYS VSYS 2.2 5.6 V
Output Voltage DCDC1 V
DCDC1
V
IN
= Nom, IOUT = Nom 1.2 V
VIN = 2.3 V to 5.6 V, PFM operation, 1 3 %
0 mA to IOUT, max
Output Voltage Accuracy DCDC1 VIN = 2.3 V to 5.6 V, PWM operation, -2 2 %
0 mA to IOUT, max
Load Regulation PWM operation 0.5 %
Output Current DCDC1 I
OUT,DCDC1
V
IN
= Min to Max 200 mA
Forward Current Limit High-side I
LIMF
V
IN
= 2.3 V to 5.6 V 425 600 775 mA
and Low-side MOSFET
Dropout Voltage LDO1 V
IN,LDO
= 2.05 V, I
OUT
= 200 mA 180 mA
Default Output Voltage LDO1 VLDO1 V
IN
= Nom, I
OUT
= Nom 1.85 V
Output Voltage Accuracy LDO1 -1.5 2.5 %
Output Current of LDO1 200 mA
Line Regulation LDO1 -1 1 %
Load Regulation LDO1 V
IN
= Nom, V
OUT
= V
OUT2
-5% -1 2 %
Systems Characteristics
Switching Frequency F
SW
2030 2250 2480 kHz
Peak Efficiency h pk V
IN
=Nom 92 %
Full Load Efficiency
h
V
IN
= 3.6, V
OUT
= 2.05, I
OUT
= 400 mA 89 %
MIPSA25202R2
3 SLVU324 – March 2010 TPS65720EVM
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