参数资料
型号: PMA5319SF/B
厂商: ERICSSON POWER MODULES AB
元件分类: 电源模块
英文描述: 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
封装: SMT-14
文件页数: 12/15页
文件大小: 289K
代理商: PMA5319SF/B
6
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B Ericsson Power Modules, November 2003
Output Ripple
Transient
PMA 5319 Typical Characteristics
Output voltage ripple (20mV/div.) at TC=+25 °C, Vin=5.0 V,
IO=12A resistive load.
Band width=5MHz.
Time scale: 2s / div.
Output voltage response to load current step-change
(3-9-3 A) at TC=+25 °C, Vin=5.0 V. dI/dt = 5A/s
Top trace: output voltage (ac) (100mV/div.).
Bottom trace: load current (dc) (100mV/div.)
Time scale: 0.1 ms/div.
Output voltage vs. Output voltage adjust
resistor value.
18
15
22
33
47
68 100 150 220 470 1000
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
[k]
[V]
VO increase
VO decrease
Output Voltage Adjust
The resistor value for an adjusted output voltage is
calculated by using the following formulas:
Output Voltage Adjust Upwards, Increase:
Radj= 3.767/(VO-2.5)-1 [k
]
Output Voltage Adjust Downwards, Decrease:
Radj= (2.212(VO-0.8))/(0.8-(0.469(VO-0.8)))-1 [k
]
E.g. Increase to VO = 2.613 V
3.767/(2.613-2.5)-1 = 33 [k
]
E.g. Decrease to VO = 2.295 V
(2.212(2.295-0.8))/(0.8-(0.469(2.295-0.8)))-1 = 33 [k
]
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