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RT8249 数据表(PDF) 13 Page - Richtek Technology Corporation

部件名 RT8249
功能描述  Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs
PDF  23 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT8249 数据表(HTML) 13 Page - Richtek Technology Corporation

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RT8249A/B/C
13
DS8249A/B/C-02
June 2014
www.richtek.com
©
Copyright
2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Output Voltage 2 vs. Output Current
3.29
3.30
3.31
3.32
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = 0V, EN2 = LDO3, VCLK off, BYP1 on
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20.5V
Output Voltage 1 vs. Output Current
4.95
4.96
4.97
4.98
4.99
5.00
5.01
0.001
0.01
0.1
1
10
Output Current (A)
EN1 = LDO3, EN2 = 0V, VCLK off, BYP1 on
VIN = 7.4V
VIN = 11.1V
VIN = 14.8V
VIN = 20.5V
VLDO5 vs. ILDO5
5.000
5.002
5.004
5.006
5.008
5.010
5.012
5.014
5.016
5.018
5.020
0
1020
3040
50
6070
8090
100
ILDO5 (mA)
VIN = 12V, EN1 = LDO3,
EN2 = 0V, VCLK off, BYP1 off
Quiescent Current vs. Input Voltage
0
5
10
15
20
25
30
5
7
9
11
131517
1921
2325
Input Voltage (V)
EN1 = EN2 = LDO3, VCLK off, BYP1 on
BYP1 Supply Current vs. Input Voltage
100
110
120
130
140
150
160
5
7
9
11
131517
1921
2325
Input Voltage (V)
EN1 = EN2 = LDO3, VCLK off, BYP1 on
VLDO3 vs. ILDO3
3.280
3.282
3.284
3.286
3.288
3.290
3.292
3.294
3.296
3.298
3.300
0
10
203040
50607080
90
100
ILDO3 (mA)
VIN = 12V, EN1 = 0V ,
EN2 = LDO3, VCLK off, BYP1 off



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