Texas Instruments TPS62065 데이터 시트
Introduction
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1
Introduction
The TPS62065-67EVM-347 is a fully assembled and tested pair of PCBs for evaluating the TPS62065
and TPS62067 2-A step-down converters. The EVM comes configured with both a TPS62065 IC and a
TPS62067 IC; there are two PCBs, one for each respective step-down converter IC.
and TPS62067 2-A step-down converters. The EVM comes configured with both a TPS62065 IC and a
TPS62067 IC; there are two PCBs, one for each respective step-down converter IC.
1.1
Features
•
Input voltage range: 3.0 V to 6.0 V
•
Adjustable output voltage: 0.8 V to VIN
•
Up to 2.0-A output current
•
3-MHz switching frequency
•
Power Good output (TPS62067EVM only)
•
Clock dithering
1.2
TPS62065/67 Applications
The TPS62065 and TPS62067 step-down converters are ideal for these applications:
•
POL
•
Digital cameras
•
PDAs, pocket PCs
•
Portable media players
•
DSP supply
2
Electrical Performance Specifications
summarizes the TPS62065/67EVM performance specifications.
Table 1. TPS62065/67EVM Performance Characteristics
Notes and
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Input Characteristics
Input Voltage
VIN
3.0
6.0
V
Falling
1.73
1.78
1.83
V
Input Undervoltage Lockout
V
IN_UVLO
(UVLO)
Rising
1.9
1.95
1.98
V
Output Characteristics
Line Regulation
0
%/V
Load Regulation
–0.5
%/A
Output Current 1
I
OUT
1 VIN = 3.0 V to 6.0 V
2000
mA
Forward Current Limit
High-Side and Low Side
High-Side and Low Side
I
LIMF
VIN = 3.0 V to 6.0 V
2300
2750
3300
mA
MOSFET
Systems Characteristics
Switching Frequency
f
SW
2600
3000
3400
kHz
Peak Efficiency
h
pk
VIN =Nom
95
%
VIN = 5.0 V, VIN =
Full Load Efficiency
h
1.8 V I
OUT
= 2,000
82
%
mA
2
TPS62065/67EVM
SLVU364 – March 2010
Copyright © 2010, Texas Instruments Incorporated