RT8206L Просмотр технического описания (PDF) - Richtek Technology
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RT8206L Datasheet PDF : 27 Pages
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RT8206L/M
Electrical Characteristics
(VIN = 12V, VEN1 = VEN2 = VCC = 5V, VBYP = 5V, PVCC = 5V, VENLDO = 5V, No Load on LDO, VOUT1, VOUT2 and REF, TA = 25°C,
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Input Supply
VIN Standby Supply Current IVIN_SBY
VIN = 6V to 25V, Both SMPS Off,
VENLDO = 5V
VIN Shutdown Supply
Current
IV IN_ SHDH
VIN = 6V to 25V,
ENx = ENLDO = GND
Both SMPSs On,
Quiescent Power
Consumption
IQ
FB1 = SKIP = GND, FB2 = VCC,
VOUT1 = VBYP = 5.3V,
VOUT2 = 3.5V (Note 5)
SMPS Output and FB Voltage
VOUT1 Output Voltage in
Fixed Mode
VOUT1
VIN = 6V to 25V, FB1= GND,
VSKIP = 5V
--
180 250 μA
--
20
40
μA
--
5
7 mW
4.975 5.05 5.125 V
VOUT2 Output Voltage in
Fixed Mode
VOUT2
VIN = 6V to 25V, FB2 = VCC,
VSKIP = 5V
3.285 3.33 3.375 V
SECFB Voltage
VSECFB
Output Voltage Adjust Range
FBx Adjustable Mode
Threshold Voltage
FBx in Output Adjustable
Mode
VLOAD
VIN = 6V to 25V (RT8206L)
SMPS1, SMPS2
Fixed or Adj-Mode comparator
threshold
Either SMPS, SKIP = VCC
Either SMPS, SKIP = REF
Either SMPS, SKIP = GND
1.92
2
2.08
V
2
--
5.5
V
0.2 0.4 0.55 V
1.975 2 2.025 V
-- 2.012 --
V
-- 2.012 --
V
Line Regulation
VLINE
Either SMPS, VIN = 6V to 25V
-- 0.005 -- %/V
On-Time
TON =
VCC
SMPS1 = 5.05V (200kHz) 1895 2105 2315
SMPS2 = 3.33V (300kHz) 832.5 925 1018
On-Time Pulse Width
tON
TON =
REF
SMPS1 = 5.05V (300kHz) 1227 1403 1579
ns
SMPS2 = 3.33V (400kHz) 606 694 782
TON =
GND
SMPS1 = 5.05V (400kHz) 895
SMPS2 = 3.33V (500kHz) 475
1052 1209
555 635
Minimum Off-Time
tOFF (MIN)
200 300 400 ns
Ultrasonic Mode Frequency
SKIP = REF
25
33
-- kHz
Soft-Start
Soft-Start Time
Current Sense
tSSx
Zero to 200mV current limit threshold
from ENx enable
--
2
--
ms
Current Limit Threshold
(Default)
VILIMx = VCC, GND − PHASEx
85 100 115 mV
Current Limit Current Source ILIMX
4.75
5
5.25 μA
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
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is a registered trademark of Richtek Technology Corporation.
DS8206L/M-07 June 2012
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