參數(shù)資料
型號(hào)： PC33730EK/R2
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDSO32
封裝： 0.65 MM PITCH, ROHS COMPLIANT, SOIC-32
文件頁(yè)數(shù)： 21/27頁(yè)
文件大小： 716K
代理商： PC33730EK/R2
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
33730
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 33730 Pin Connections
Table 1. 33730 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 12.
Pin Number
Pin Name
Pin Function
Formal Name
Definition
1
HRT
Analog
Output
Hardware Reset Timer
This pin is the hardware reset timer programmed with an external resistor.
2
RSTKAM
Open Drain
VKAM Reset
This pin is an open drain reset output, monitoring the VKAM supply to the
microprocessor.
3
RSTH
Open Drain
VDDH Reset
This pin is an open drain reset output, monitoring the VDDH regulator.
4
RSTL
Open Drain
VDDL Reset
This pin is an open drain reset output, monitoring the VDDL regulator.
5
RST3
Open Drain
VDD3 Reset
This pin is an open drain reset output, monitoring the VDD3 regulator.
6
VREF2
Power Output
VREF Output 2
This pin is the output of the protected supply VREF2. The pin is supplied
from the VDDH through the protection FET.
7
VDDL
Analog Input
VDDL Regulator
This pin is the VDDL regulator output feedback pin.
8
VDDH
Analog/
Power Input
VDDH Regulator
This pin is the 5.0V output feedback pin of the buck regulator. The pin is
also a power input for the protected outputs VREF1,2.
9
VDDL_B
Analog
Output
VDDL Regulator Base
Drive
VDDL linear regulator base drive.
10
VREF1
Power Output
VREF Output 1
This pin is the output of the protected supply VREF1. The pin is supplied
from the VDDH through the protection FET.
11
REGON
Logic Input
Regulator Hold On
Regulator Hold On input pin.
12
IGN_ON
Open Drain
VIGN Status
This open drain output signals the status of the VIGN pin.
13
VCOMP
Analog
Output
Compensation
This pin provides switching pre-regulator compensation, it is the output of
the error amplifier.
14
INV
Analog Input
Inverting Input
Inverting input of the switching regulator error amplifier.
15
FREQ
Analog Input Frequency Adjustment
Frequency adjustment of the switching regulator. The value of the resistor
to ground at this pin determines the oscillator frequency.
16
P1
Logic Input
Programming Pin 1
Programming pin 1 for the VDD3, VDDL, and VKAM reference voltages.
Note: The exposed pad is electrically and thermally connected to the IC ground.
HRT
RSTKAM
RSTH
RSTL
RST3
VREF2
VDDL
VDDH
VDDL_B
VREF1
REGON
IGN_ON
VCOMP
INV
FREQ
P1
P3
VIGN
GND
VDD3_B
VDD3
VKAM
CP
KA_VBAT
VBAT
SW
SR
BOOT
PFD
P2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
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