参数资料
型号: PTH04T220WAZ
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, PLASTIC, DIP-11
文件页数: 11/39页
文件大小: 1247K
代理商: PTH04T220WAZ
C Capacitance
F
T
ransient
mV/A
20
10000
6000
5000
4000
3000
2000
1000
500
400
300
200
600
10
9
8
7
6
5
4
3
2
With TurboTrans
Without TurboTrans
20
10000
6000
5000
4000
3000
2000
1000
500
400
300
200
600
10
9
8
7
6
5
4
3
2
C Capacitance
F
T
ransient
mV/A
Without TurboTrans
With TurboTrans
R
TT +
40
1 * CO 1100
C
O
220 * 1
(kW)
(3)
www.ti.com ................................................................................................................................................... SLTS275D – DECEMBER 2006 – REVISED JULY 2009
PTH04T220W Type B Capacitors
5-V Input
3.3-V Input
Figure 14. Capacitor Type B, 1000 < C(
F)×ESR(m) ≤
Figure 15. Capacitor Type B, 1000 < C(
F)×ESR(m) ≤
5000 (e.g. Polymer-Tantalum)
Table 5. Type B TurboTrans CO Values and Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
3.3-V Input
25% load step
50% load step
75% load step
CO
RTT
CO
RTT
(4 A)
(8 A)
(12 A)
Minimum
Required
Minimum
Required
Required Output
TurboTrans
Required Output
TurboTrans
Capacitance (
F)
Resistor (k
)
Capacitance (
F)
Resistor (k
)
80
160
240
220
open
220
open
70
140
210
230
698
250
243
60
120
180
280
110
310
71.5
50
100
150
370
39.2
400
30.9
40
80
120
500
16.9
550
13.3
30
60
90
760
4.99
830
3.57
25
50
75
1000
1.02
1100
short
20
40
60
1900
short
2500
short
15
30
45
5900
short
7600
short
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming, see Equation 3.
Where CO is the total output capacitance in F. CO values greater than or equal to 1100 F require RTT to be a
short, 0
. (RTT results in a negative value when CO > 1100F).
To ensure stability, a minimum amount of output capacitance is required for a given RTT resistor value. The value
of RTT must be calculated using the minimum required output capacitance determined from the capacitor
transient response charts above.
Copyright 2006–2009, Texas Instruments Incorporated
19
Product Folder Link(s): PTH04T220W PTH04T221W
相关PDF资料
PDF描述
PTH04T221WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T221WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T220WAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T240FAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T240FAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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PTH04T221W 制造商:TI 制造商全称:Texas Instruments 功能描述:16-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS
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PTH04T221WAS 功能描述:DC/DC转换器 16A 2.2V-5.5Vin Cer Cap Ver Pwr Module 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:
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