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RT9971 Datasheet(PDF) 5 Page - Richtek Technology Corporation

Part # RT9971
Description  7 CH Power Management IC
PDF  22 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9971 Datasheet(HTML) 5 Page - Richtek Technology Corporation

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DS9971-01 April 2011
www.richtek.com
RT9971
Channel
CH3
Formula
VOUT_CH3 = (1+R7/R8) x 0.8
VOUT_CH3 (V)
2.5
1.8
1.5
1.3
1.2
1
L3 (
µH)
4.7
4.7
4.7
4.7
4.7
4.7
R7 (kΩ)
768
470
330
237
187
23.2
R8 (kΩ)
360
374
374
374
374
93.1
C10 (pF)
22
33
47
68
82
47
C9 (
µF)
10
10
10
10
10
10
Channel
CH4
Application
VOUT_CH4 = (1+R9/R10) x 0.8
VOUT_CH4 (V)
2.5
1.8
1.5
1.3
1.2
1
L4 (
µH)
4.7
4.7
4.7
4.7
4.7
4.7
R9 (kΩ)
768
470
330
237
187
23.2
R10 (kΩ)
360
374
374
374
374
93.1
C13 (pF)
22
33
47
68
82
47
C12 (
µF)
10
10
10
10
10
10
Channel
CH5
Formula
VOUT_CH5 = (1+R11/R12) x 1.25
VOUT_CH5 (V)
12
13
14
15
15.5
16
L5 (
µH)
10
10
10
10
10
10
R11 (kΩ)
820
820
953
1000
820
886
R12 (kΩ)
95.3
86.6
93.1
90.9
71.5
75
C15 (pF)
1000
1000
1000
1000
1000
1000
C16 (
µF)
10/16V
10/16V
10/25V
10/25V
10/25V
10/25V
Channel
CH6
Formula
VOUT_CH6 = (R13/R14) x (-1.25)
* R13+R14 <90k
VOUT_CH6 (V)
-6
-6.3
-7
-7.5
-8
L6 (
µH)
10
10
10
10
10
R13 (kΩ)
57.6
69.8
63.4
68
68
R14 (kΩ)
12
13.7
11.3
11.3
10.5
C17 (pF)
1000
1000
1000
1000
1000
C18 (
µF)
10 x 2pcs.
10 x 2pcs.
10 x 2pcs.
10 x 2pcs.
10 x 2pcs.
Table 1. Recommended Components for the Typical Application Circuit



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