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3 Electrical Performance Specifications
Table 1. UCD9224EVM-464 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage range As configured, EVM input capable of 4.75 V to 14.0 V 10.8 12 13.2 V
No load input current 135 mA
Controller turn-on voltage Input voltage above which outputs become enabled 11.0 V
Controller turn-off voltage Input voltage below which outputs become disabled 10.5
Controller OVP protection Input voltage above which operation is latched off 13.8
Output Characteristics
Output voltage, VOUT1 I
OUT1
= 10 A 2.450 2.5 2.550 V
Output load current, IOUT1 10
Output voltage regulation Line regulation: V
IN
= 10.8 V to 13.2 V, I
OUT1
= 10 A <1.0%
Load regulation: I
OUT1
= 10% to 100%, V
IN
= 12 V <1.0%
Output voltage ripple I
OUT1
= 10 A 30 mVpp
Output over current 12.5 A
Output voltage, VOUT2 Output current = 10 A 1.750 1.8 1.850 V
Output load current, IOUT2 10 A
Output voltage regulation Line regulation: V
IN
= 10.8 V to 13.2 V, I
OUT2
= 10 A <1.0%
Load regulation: I
OUT2
= 10% to 100%, V
IN
= 12 V <1.0%
Output voltage ripple I
OUT2
= 10 A 25 mV
PP
Output over current 12.5 A
Systems Characteristics
Switching frequency 750 kHz
Efficiency 2.5 V at 10 A, 1.2 V at 0 A 87.5%
1.2 V at 10 A, 2.5 V at 0 A 78.2%
Operating temperature 25 ºC
5
SLUU443–March 2011 UCD9224EVM-464 Digitally Controlled Dual-Rail POL
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