參數(shù)資料
型號(hào)： 33702
廠商： Motorola, Inc.
英文描述： 3.0 A Switch-Mode Power Supply with Linear Regulator
中文描述： 3.0開關(guān)模式電源，線性穩(wěn)壓器
文件頁數(shù)： 3/24頁
文件大小： 841K
代理商： 33702
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33702
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
337-020-500-201 功能描述:標(biāo)準(zhǔn)卡緣連接器 GRN CRD EDGE .156X.2 PCB DEPTH .350 RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold
337-020-500-202 功能描述:標(biāo)準(zhǔn)卡緣連接器 GRN CRD EDGE .156X.2 PCB DEPTH .350 RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold
337-020-500-204 功能描述:標(biāo)準(zhǔn)卡緣連接器 GRN CRD EDGE .156X.2 PCB DEPTH .350 RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold
337-020-500-802 功能描述:標(biāo)準(zhǔn)卡緣連接器 GRN CRD EDGE .156X.2 PCB DEPTH .350 RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold
337-020-500-804 功能描述:標(biāo)準(zhǔn)卡緣連接器 GRN CRD EDGE .156X.2 PCB DEPTH .350 RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold
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