参数资料
型号: PTH08T260WAD
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 COMPLIAT, DIP-10
文件页数: 35/38页
文件大小: 1206K
代理商: PTH08T260WAD
SLTS272F
– DECEMBER 2006 – REVISED APRIL 2011
ELECTRICAL CHARACTERISTICS (continued)
TA =25°C, VI = 5V, VO = 3.3V, CI = 330F, CO1 = 100F ceramic, CO2 = 100F, IO = IOmax (unless otherwise stated)
PARAMETER
TEST CONDITIONS
PTH08T260W
MIN
TYP
MAX
UNIT
fSYNC
Synchronization (SYNC) frequency
240
400
kHz
VSYNCH
SYNC High-Level Input Voltage
2
5.5
V
SmartSync Control
VSYNCL
SYNC Low-Level Input Voltage
0.8
V
tSYNC
SYNC Minimum Pulse Width
200
nSec
CI
External input capacitance
330 (7)
F
Nonceramic
100 (8)
5000 (9)
Capacitance value
F
without
Ceramic
100 (8)
500
TurboTrans
Equivalent series resistance (non-ceramic)
7
m
CO
External output capacitance
see table
10,000
Capacitance value
μF
with
(10)
(11)
Turbotrans
Capacitance
× ESR product (CO × ESR)
1000
10,000
μF×m
Per Telcordia SR-332, 50% stress,
MTBF
Reliability
6.7
106 Hr
TA = 40°C, ground benign
(7)
A 330
F electrolytic input capacitor is required for proper operation. The capacitor must be rated for a minimum of 450 mA rms of ripple
current. An additional 22-
μF ceramic input capacitor is recommended to reduce rms ripple current. When operating at VI > 8V, the
minimum required CI may be reduced to a 220-μF electrolytic plus a 22-μF ceramic.
(8)
100
F ceramic & 100 μF non-ceramic external output capacitance is required for basic operation. The 100 F required ceramic output
capacitance can be made up of 2
× 47 F. The minimum output capacitance requirement increases when TurboTrans (TT) technology
is used. See the Application Information for more guidance.
(9)
This is the calculated maximum disregarding TurboTrans
technology. When the TurboTrans feature is used, the minimum output
capacitance must be increased. See the TurboTrans application notes for further guidance.
(10) When using TurboTrans
technology, a minimum value of output capacitance is required for proper operation. Additionally, low ESR
capacitors are required for proper operation. See the TurboTrans application notes for further guidance.
(11) This is the calaculated maximum when using the TurboTrans feature. Additionally, low ESR capacitors are required for proper operation.
See the TurboTrans application notes for further guidance.
6
Copyright
2006–2011, Texas Instruments Incorporated
相关PDF资料
PDF描述
PTH08T260WAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T261WAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T260WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T261WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH08T260WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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PTH08T260WAZ 功能描述:DC/DC转换器 3-A 4.5V to 14V Input RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
PTH08T260WAZT 功能描述:DC/DC转换器 3-A 4.5V to 14V Input RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压(标称): 输出端数量:1 输出电压(通道 1):3.3 V 输出电流(通道 1):600 mA 输出电压(通道 2): 输出电流(通道 2): 安装风格:SMD/SMT 封装 / 箱体尺寸:
PTH08T261W 制造商:TI 制造商全称:Texas Instruments 功能描述:3-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans