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參數(shù)資料
| 型號： | PM6641TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, LEAD FREE, VQFP-48 |
| 文件頁數(shù)： | 44/47頁 |
| 文件大小： | 2254K |
| 代理商： | PM6641TR |
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Pin settings
PM6641
6/47
Doc ID 13510 Rev 3
2.2
Pin description
Table 2.
Pin functions
n°
Pin
Function
1
AGND
Analog and signal ground.
2
SET_SWF
Switching frequency setting input.
3
VOUT_1S8
VDDQ/2 divider input and discharge path for 1.8 V rail.
4CSNS
Current limit setting input for all rails.
5
SGND_1S8
Switcher power ground for 1.8 V rail.
6
SGND_1S8
Switcher power ground for 1.8 V rail.
7
VSW_1S8
Switch node for 1.8 V rail.
8
VSW_1S8
Switch node for 1.8 V rail.
9
VIN_1S8
Power supply input for 1.8 V rail.
10
VIN_1S8
Power supply input for 1.8 V rail.
11
VFB_1S8
Feedback input for 1.8 V rail.
12
COMP_1S8
Loop compensation output for 1.8 V rail. See Chapter 7.3: SW regulators
components selection on page 38 sections for details.
13
SS_1S8
Positive terminal of the external soft-start capacitor for 1.8 V rail.
See Chapter 7.6: Outputs soft-start on page 28 section for details.
14
SS_1S05
Positive terminal of the external soft-start capacitor for 1.05 V rail.
See Chapter 7.6: Outputs soft-start on page 28 section for details.
15
COMP_1S05
Loop compensation output for 1.05 V rail. See Chapter 7.3: SW regulators
components selection on page 38 for details.
16
VFB_1S05
Feedback input for 1.05 V rail.
See Chapter 7.5: Output voltage divider on page 27 section for details
17
SGND_1S05
Switcher power ground for 1.05 V rail.
18
SGND_1S05
Switcher power ground for 1.05 V rail.
19
VSW_1S05
Switch node for 1.05 V rail.
20
VSW_1S05
Switch node for 1.05 V rail.
21
VIN_1S05
Power supply input for 1.05 V rail.
22
VIN_1S05
Power supply input for 1.05 V rail.
23
PG_1S05
Power Good signal for 1.05 V rail. Open drain. See Chapter 7.2: Chipset
supply on page 22 section for details.
24
PG_1S8
Power Good signal for 1.8 V rail. Open drain. See Chapter 7.1.1: VDDQ
switching regulator on page 20 section for details.
25
PG_1S5
Power Good signal for 1.5 V rail. Open drain. See Chapter 7.2: Chipset
supply on page 22 section for details.
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