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RT8205CGQW 数据表(PDF) 10 Page - Richtek Technology Corporation

部件名 RT8205CGQW
功能描述  High Efficiency, Main Power Supply Controllers for Notebook Computers
PDF  28 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT8205CGQW 数据表(HTML) 10 Page - Richtek Technology Corporation

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RT8205A/B/C
10
DS8205A/B/C-06 July 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
(VIN = 12V, EN = 5V, ENTRIP1 = ENTRIP2 = 2V, No Load on VREG5, VREG3, 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,
EN = 5V
--
200
--
μA
VIN Shutdown Supply
Current
IVIN_SHDH VIN = 6V to 25V, ENTRIPx = EN = GND
--
20
40
μA
Quiescent Power
Consumption
Both SMPSs On, FBx = SKIPSEL = REF
VOUT1 = 5.3V, VOUT2 = 3.5V
(Note 5)
--
5
7
mW
SMPS Output and FB Voltage
VOUT1 Output Voltage in
Fixed Mode
VOUT1
VIN = 6V to 25V, FB1= GND or 5V,
SKIPSEL = GND
4.975
5.05
5.125
V
VOUT2 Output Voltage in
Fixed Mode
VOUT2
VIN = 6V to 25V, FB2 = GND or 5V,
SKIPSEL = GND
3.285
3.33
3.375
V
FBx in Output Adjustable
Mode
FBx
VIN = 6V to 25V
1.975
2
2.025
V
SECFB Voltage
SECFB
VIN = 6V to 25V (RT8205C)
1.92
2
2.08
V
Output Voltage Adjust
Range
VOUTx
SMPS1, SMPS2
2
--
5.5
V
FBx Adjustable-mode
Threshold Voltage
Fixed or Adj-Mode comparator threshold
0.2
0.4
0.55
V
Either SMPS, SKIPSEL = GND, 0 to 5A
--
−0.1
--
%
Either SMPS, SKIPSEL = VREG5, 0 to 5A
--
−1.7
--
%
DC Load Regulation
VLOAD
Either SMPS, SKIPSEL = REF, 0 to 5A
--
−1.5
--
%
Line Regulation
VLINE
Either SMPS, VIN = 6V to 25V
--
0.005
--
%/V
On Time
VOUT1 = 5.05V
1895
2105
2315
TONSEL = GND
VOUT2 = 3.33V
999
1110
1221
VOUT1 = 5.05V
1227
1403
1579
TONSEL = REF
VOUT2 = 3.33V
647
740
833
VOUT1 = 5.05V
895
1052
1209
On-Time Pulse Width
tUGATEx
TONSEL = VREG5
VOUT2 = 3.33V
475
555
635
ns
Minimum Off-Time
tLGATEx
200
300
400
ns
Ultrasonic Mode
Frequency
SKIPSEL = VREG5 or VREG3
25
33
--
kHz
Soft Start
Soft-Start Time
tSSx
Zero to Full Limit from ENTRIPx Enable
--
2
--
ms
Current Sense
Current Limit Threshold
(Default)
VENTRIPx = VREG5, GND−PHASEx
180
200
220
mV
ENTRIPx Source Current IENTRIPx
VENTRIPx = 0.9V
9.4
10
10.6
μA
ENTRIPx Current
Temperature Coefficient
TCIENTRIPx
--
1600
--
PPM/
°C
ENTRIPx Adjustment
Range
VENTRIPx = IENTRIPx x RENTRIPx
0.5
--
2
V



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