参数资料
型号: PIP201-12M-3,518
厂商: NXP SEMICONDUCTORS
元件分类: 稳压器
英文描述: 200 A SWITCHING REGULATOR, PQCC68
封装: 10 X 10 MM, 0.85 MM HEIGHT, PLASTIC, SOT-687-1, HVQFN-68
文件页数: 14/20页
文件大小: 345K
代理商: PIP201-12M-3,518
Philips Semiconductors
PIP201-12M-3
DC-to-DC converter powertrain
Product data
Rev. 03 — 19 November 2003
3 of 20
9397 750 11942
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
6.2 Pin description
[1]
All pins connected to PAD1
[2]
All pins connected to PAD2
[3]
All pins connected to PAD3.
[4]
PAD1, PAD2 and PAD3 are electrical connections and must be soldered to the printed circuit board.
[5]
All n.c. pins should be connected to VSSC.
7.
Functional description
7.1 Basic functionality
In order to understand the functions performed by the PIP201-12M, consider the
requirements of a synchronous DC-to-DC converter output stage, driven from a PWM
controller (Figure 3).
When the input voltage is HIGH, the upper MOSFET must be on and the lower
MOSFET must be off. Current ows from the supply (VDDO), through the upper
MOSFET and the inductor (Lout), to the output.
Table 2:
Pin description
Symbol
Pin
I/O
Description
VDDO
1 to 8, 60, 61,
68
-
output stage supply voltage
VSSC
9, 15, 22 to 24
-
control circuit supply ground
VO
10, 26, 27,
45 to 59,
62 to 67
O
output
CB
11, 12
I/O
bootstrap capacitor connection
VDDC
13, 14
-
control circuit supply voltage
VI
16, 17
I
pulse width modulated input
VSSO
28 to 44
-
output stage supply ground
n.c.
18 to 21, 25
-
no internal connection
Fig 3.
Simplied functional block diagram of a synchronous DC-to-DC converter
output stage.
VI
VDDC
VSSC
VO
VDDO
input voltage
from PWM controller
control circuit supply (12 V)
output stage supply voltage
tp
T
δ =
VI
VSSO
CB
03ad36
output
100
nF
Lout
Cout
signal ground power ground
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