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參數(shù)資料
| 型號： | MC33701 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | 1.5 A Switch-Mode Power Supply with Linear Regulator(1.5 A開關方式電源，帶線性穩(wěn)壓器) |
| 中文描述： | 1.5開關模式電源，線性穩(wěn)壓器（1.5 A的開關方式電源，帶線性穩(wěn)壓器） |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 841K |
| 代理商： | MC33701 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33701
3
PIN FUNCTION DESCRIPTION
Pin
Pin Name
Formal Name
Definition
1
FREQ
Oscillator Frequency
This selection switcher pin can be adjusted by connecting external resistor R
F
to the
FREQ pin. The default switching frequency (FREQ pin left open or tied to V
DDI
) is set
to 300 kHz.
2
INV
Inverting Input
Buck Controller Error Amplifier inverting input.
3
V
OUT
Output Voltage
Output voltage of the buck converter. Input pin of the switching regulator power
sequence control circuit.
4, 5
V
IN2
Input Voltage 2
Buck regulator power input. Drain of the high-side power MOSFET.
6, 7
SW
Switch
Buck regulator switching node. This pin is connected to the inductor.
8, 9
24, 25
GND
Ground
Analog ground of the IC, thermal heatsinking.
10, 11
PGND
Power Ground
Buck regulator power ground.
12
V
BD
Boost Drain
Drain of the internal boost regulator power MOSFET.
13
V
BST
Boost Voltage
Internal boost regulator output voltage. The internal boost regulator provides a 20 mA
output current to supply the drive circuits for the integrated power MOSFETs and the
external N-channel power MOSFET of the linear regulator. The voltage at the V
BST
pin
is 8.0 V nominal.
14
BOOT
Bootstrap
Bootstrap capacitor input.
15
SDA
Serial Data
I
2
C bus pin. Serial data.
16
SCL
Serial Clock
I
2
C bus pin. Serial clock.
17
LCMP
Linear Compensation
Linear regulator compensation pin.
18
LFB
Linear Feedback
Linear regulator feedback pin.
19
LDO
Linear Regulator
Input pin of the linear regulator power sequence control circuit.
20
CS
Current Sense
Current sense pin of the LDO. Overcurrent protection of the linear regulator external
power MOSFET. The voltage drop over the LDO current sense resistor R
S
is sensed
between the CS and LDO pins. The LDO current limit can be adjusted by selecting the
proper value of the current sensing resistor R
S
.
21
LDRV
Linear Drive
LDO gate drive of the external pass N-channel MOSFET.
22
V
IN1
Input Voltage 1
The input supply pin for the integrated circuit. The internal circuits of the IC are supplied
through this pin.
CLKSYN
CLKSEL
RESET
1
2
EN2
EN1
ADDR
GND
GND
V
DD1
V
IN1
LDRV
CS
LDO
LFB
LCMP
RT
FREQ
INV
V
OUT
V
SW
SW
GND
GND
PGND
PGND
V
BD
V
BOOT
SDA
SCL
V
IN2
8
9
10
11
12
13
14
15
16
3
4
5
6
7
32
31
25
24
23
22
21
20
19
18
17
30
29
28
27
26
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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相關代理商/技術參數(shù) |
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| MC33720 | 制造商:PRIVATE LABEL 功能描述:AXIAL FAN, 254MM, 125VAC, 1A, Supply Voltage:125VAC, Flow Rate - Imperial:935cu. |
| MC33730EK | 功能描述:開關變換器、穩(wěn)壓器與控制器 SW MODE P/S W/ MULT REG RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MC33730EKR2 | 功能描述:開關變換器、穩(wěn)壓器與控制器 SW MODE P/S W/ MULT REG RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MC3373P | 制造商:Motorola Inc 功能描述: |
| MC33742DW | 功能描述:網絡控制器與處理器 IC SBC-E-HS RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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