
PRELIMINARY Data Sheet
PLD08 Series – 8A Non-Isolated DC/DC Converter
5V Input, Dual 1.2 to 3.3V Output
3.3V Input, Dual 1.2 to 2.5V Output
REV. 3/36/02
Page 3 of 9
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Output Specifications
All specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Output Voltage Setpoint Accuracy
Vin.nom, 50% Load
-1.5
1.5
%Vout
Output Current Range(Note 4)
Individual Output
Total Combined Current
0.2
0.4
5
8
ADC
Line Regulation
Vin.min to Vin max at
Iout.max
0.2
%Vout
Load Regulation
At Vin nom, Iout.0.8A to 8A
7
mV
Total output voltage regulation
Over all input voltage, load,
and temperature conditions
3.0
%Vout
Dynamic Regulation:
Peak Deviation
Settling Time (to 1% error band)
50-25-50% load step change
on either output while other
output at 4A
+/-20
30
+/-50
200
mVp-p
S
Admissible Load Capacitance
Vin nom, Iout.max
1000
F
Output Current Limit Threshold**
Vout 0.97Vout.nom
115
230
%Iout
Switching Frequency
550
kHz
Temperature Coefficient
0.01
%/°C
Output Ripple and Noises
Vin nom, Iout.max
10
30
20
50
mVrm
s
mVp-p
Trim Range
Vin nom, Iout.max
PLD08Uxx(Note 5)
PLD08Vxx
90
110
%Vout
External Capacitor (required)
Each output, ESR < 0.1 Ohm
100
F
Notes:
3. If output voltage is 2.5V, minimum input voltage is 3.15V.
4. At Iout<Iout.min, the output may contain low frequency component that exceeds ripple specifications.
If model is operating over rating current, model should be given some protection (input side fuse and so on).
5. 105 for 2.5V output
Feature Specifications
All specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Shutdown (ON/OFF)
Logic Low
Logic High
On/Off signal low – converter is OFF
On/Off signal high or floating –
converter is ON
0
Vin min
0.4
Vin
max
VDC
Open circuit voltage
Vin
Overtemperature
Protection
N/A
°C