RT8223P データシートの表示（PDF） - Richtek Technology
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RT8223P Datasheet PDF : 23 Pages
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RT8223P
Electrical Characteristics
(VIN = 12V, VEN = VENC = 5V, VENTRIP1 = VENTRIP2 = 2V, No Load, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Input Supply
VIN Standby Current IVIN_SBY VIN = 6V to 25V, ENTRIPx = GND
--
VIN Shutdown Supply
Current
IVIN_SHDN
VIN = 6V to 25V,
ENTRIPx = EN = GND
--
Quiescent Power
Consumption
PVIN
+PPVCC
Both SMPS On, VFBx = 2.1V,
SKIPSEL = GND, VOUT1 = 5V, VOUT2 = 3.3V --
(Note 5)
200 --
μA
20 40 μA
5
7 mW
SMPS Output and FB Voltage
DEM Mode
1.975 2 2.025
FBx Voltage
VFB x
PWM Mode (Note 6)
--
2
--
V
Ultrasonic Mode
-- 2.032 --
Output Voltage Adjust
Range
VOUTx
VOUTx Discharge
Current
On-Time
SMPS1, SMPS2
VOUTx = 0.5V, VENTRIPx = 0V
2
-- 5.5
V
10 45 -- mA
On-Time Pulse Width tON
Minimum Off-Time tOFF
Ultrasonic Mode
Frequency
Soft-Start
TONSEL = GND VOUT1 = 5.05V (200kHz) 1895 2105 2315
VOUT2 = 3.33V (250kHz) 999 1110 1221
TONSEL = REF VOUT1 = 5.05V (300kHz) 1227 1403 1579 ns
VOUT2 = 3.33V (375kHz) 647 740 833
TONSEL = REG5 VOUT1 = 5.05V (400kHz) 895 1052 1209
VOUT2 = 3.33V (500kHz) 475 555 635
VFBx = 1.9V
200 300 400 ns
SKIPSEL = VREG5 or VREG3
22 33 -- kHz
Soft-Start Time
tSSx
Internal Soft-Start
--
2
--
ms
Current Sense
ENTRIPx Source
Current
ENTRIPx Current
Temperature
Coefficient
ENTRIPx Adjustment
Range
Current Limit
Threshold
Zero-Current
Threshold
IENTRIPx VENTRIPx = 0.9V
TCIENTRIPx In Comparison with 25°C (Note 6)
VENTRIPx = IENTRIPx x RENTRIPx
GND − PHASEx, VENTRIPx = 2V
GND − PHASEx in DEM
9.4 10 10.6 μA
-- 4700 -- ppm/°C
0.515 --
3
V
180 200 220 mV
--
3
-- mV
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6
To be continued
DS8223P-01 June 2011
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