Texas Instruments Evaluation Module for TPS657051 TPS657051EVM-522 TPS657051EVM-522 Datenbogen
Produktcode
TPS657051EVM-522
TPS657051/2EVM Electrical Performance Specifications
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1.2
Power Supply Requirements
A dc power supply capable of delivering 5 V at 1 A is required to operate this EVM
1.3
Applications
•
USB camera
•
Handheld applications
1.4
Features
•
Input voltage rating
•
2 × 200-mA Step-down converter for TPS657051/2
•
2.25-MHz switching frequency
•
1 General-purpose 200-mA LDO
2
TPS657051/2EVM Electrical Performance Specifications
Table 1. TPS657051/2EVM Electrical and Performance Specifications
Parameter
Notes and Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
V
IN
Input Voltage
3.3
6
V
V
IN1
Input Voltage DCDC1
3.3
6
V
V
IN2
Input Voltage LDO1
3.3
6
V
V
UVLO
UVLO
V
AC
rising
3.2
3.3
3.45
V
V
HYS -UVLO
UVLO Hysteresis
V
AC
falling
200
300
mV
OUTPUT CHARACTERISTICS
V
DCDC1
Output Voltage DCDC1
V
IN
= Nom, I
OUT
= Nom
3.3
V
V
DCDC2
Output Voltage DCDC2
V
IN
= Nom, I
OUT
= Nom
1.8
V
V
IN
= Nom,
TPS657051
3.0
V
LDO1
Output Voltage LDO1
V
I
OUT
= Nom
TPS657052
2.8
–1.5
–
1.5%
Output Voltage Accuracy DCDC1, V
IN
= 3.3 V to 6 V, PFM Mode,
%
DCDC2
Load 0 mA to Iout, max
1
3
Output Voltage Accuracy LDO1
I
OUT
= 100 mA, Vout = 2.8 V
–2%
+2%
Dropout Voltage at LDO
I
O
= 200 mA
200
mV
I
OUT1
Output Current DCDC1
V
IN
= Min to Max
400
mA
I
OUT2
Output Current DCDC2
V
IN
= Min to Max
400
mA
I
OUT1
Output Current LDO1
V
IN
= Min to Max
200
mA
SYSTEMS CHARACTERISTICS
F
SW
Switching Frequency
2030
2250
2480
kHz
h
pk
Peak Efficiency
V
IN
= Nom
–
92%
2
TPS657051/2EVM-522 Evaluation Module
SLVU366 – April 2010
Copyright © 2010, Texas Instruments Incorporated