参数资料
型号: PTH05060YAZ
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源模块
英文描述: 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, DIP-10
文件页数: 18/19页
文件大小: 823K
代理商: PTH05060YAZ
www.ti.com
Ceramic Capacitors
Tantalum Capacitors
Capacitor Table
PTH03060Y
PTH05060Y, PTH12060Y
SLTS222A–MARCH 2004–REVISED OCTOBER 2005
APPLICATION INFORMATION (continued)
Above 150 kHz the performance of aluminum electrolytic capacitors becomes less effective. To further improve
the reflected input ripple current or the output transient response. Multilayer ceramic capacitors have very low
ESR and their resonant frequency higher than the bandwidth of the regulator. They can be used to reduce the
reflected ripple current at the input as well as improve the transient response of the output. When used on the
output their combined ESR is not critical as long as the total value of ceramic capacitance does not exceed
300 F. Also, to prevent the formation of local resonances, do not place more than five identical ceramic
capacitors in parallel with values of 10 F or greater.
Tantalum type capacitors can be used at both the input and output, and are recommended for applications where
the ambient operating temperature can be less than 0°C. The AVX TPS, Sprague 593D/594/595 and Kemet
T495/T510 capacitor series are suggested over many other tantalum types due to their higher rated surge, power
dissipation, and ripple current capability. As a caution many general purpose tantalum capacitors have
considerably higher ESR, reduced power dissipation and lower ripple current capability. These capacitors are
also less reliable when determining their power dissipation and surge current rating. Tantalum capacitors that do
not have a stated ESR or surge current rating are not recommended for power applications.
When specifying Os-Con and polymer tantalum capacitors for the output, the minimum ESR limit will be
encountered well before the maximum capacitance value is reached.
Table 1 identifies the characteristics of capacitors from a number of vendors with acceptable ESR and ripple
current (rms) ratings. The recommended number of capacitors required at both the input and output buses is
identified for each capacitor type.
This is not an extensive capacitor list. Capacitors from other vendors are available with comparable
specifications. Those listed are for guidance. The RMS ripple current rating and ESR (at 100 kHz) are critical
parameters necessary to insure both optimum regulator performance and long capacitor life.
Table 1. Input/Output Capacitors(1)
Capacitor Characteristics
Quantity
Capacitor Vendor,
Vendor
Working
Max ESR
Max Ripple
Physical
Value
Input
Output
Type/Series (Style)
Part Number
Voltage
at 100 kHz
Current at 85°CSize
(F)
Bus
(V)
()
(Irms) (mA)
(mm)
Panasonic, Aluminum
FC (Radial)
10
470
0.117
555
8×11,5
1
EEUFC1A471
FK (SMD)
10
470
0.160
600
8×10,2
1
EEVFK1A471P
FC (SMD)
10
470
0.150
670
10×10,2
1
EEVFC1A471P
United Chemi-Con
PXA, Poly-Aluminum (SMD)
10
470
0.012
5300
10×12,2
1
≤1
PXA10VC471MJ12TP
PS, Poly-Aluminum (Radial)
10
470
0.012
5300
8×12,2
1
≤1
10PS470MJ12
LXZ, Aluminum (Radial)
10
470
0.120
555
8×12
1
LXZ10VB471M8X12LL
Nichicon Aluminum
WG (SMD)
10
470
0.150
670
10×10
1
UWG1A471MNR1GS
HD (Radial)
10
470
0.072
760
8×11.5
1
UHD1A471MPR
PM (Radial)
16
330
0.120
625
10×12,5
1
2
UPM1C331MPH6
(1) Capacitor Supplier Verification
Please verify availability of capacitors identified in this table. Capacitor suppliers may recommend alternative part numbers because of
limited availability or obsolete products. In some instances, the capacitor product life cycle may be in decline and have short-term
consideration for obsolescence.
RoHS, Lead-free and Material Details
Please consult capacitor suppliers regarding material composition, RoHS status, lead-free status, and manufacturing process
requirements. Component designators or part number deviations can occur when material composition or soldering requirements are
updated.
8
相关PDF资料
PDF描述
PTH03060YAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060YAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060YAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060YAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05060YAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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