參數(shù)資料
型號(hào)： MCZ34701EWR2
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： 1.5A Switch-Mode Power Supply with Linear Regulator
中文描述： 1.5A的開(kāi)關(guān)模式電源，線性穩(wěn)壓器
文件頁(yè)數(shù)： 16/39頁(yè)
文件大?。?/td> 528K
代理商： MCZ34701EWR2
Analog Integrated Circuit Device Data
Freescale Semiconductor
16
34701
FUNCTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 34701 power supply integrated circuit provides the
means to efficiently supply the Freescale Power QUICC and
other families of Freescale microprocessors. It incorporates a
high performance synchronous buck regulator, supplying the
microprocessor’s core, and a low dropout (LDO) linear
regulator providing the microprocessor I/O and bus voltages.
This device incorporates many advanced features; e.g.,
precisely maintained up/down power sequencing, ensuring
the proper operation and protection of the CPU and power
system. At the same time, it provides high flexibility of
configuration, allowing the maximum optimization of the
power supply system.
FUNCTIONAL PIN DESCRIPTION
OSCILLATOR FREQUENCY PIN (FREQ)
This switcher frequency selection pin can be adjusted by
connecting external resistor RF to the FREQ pin. The default
switching frequency (FREQ pin left open or tied to VDDI) is
set to 300kHz.
INVERTING INPUT PIN (INV)
Buck Controller Error Amplifier inverting input.
OUTPUT VOLTAGE PIN (VOUT)
Output voltage of the buck converter. Input pin of the
switching regulator power sequence control circuit.
INPUT VOLTAGE 2 PINS (VIN2)
Buck regulator power input. Drain of the high side power
MOSFET.
SWITCH PINS (SW)
Buck regulator switching node. This pin is connected to the
inductor.
GROUND PINS (GND)
Analog ground of the IC, thermal heatsinking.
POWER GROUND PINS (PGND)
Buck regulator power ground.
BOOST DRAIN PIN (VBD)
Drain of the internal boost regulator power MOSFET.
BOOST VOLTAGE PIN (VBST)
Internal boost regulator output voltage. The internal boost
regulator provides a 20mA 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 VBST pin is 7.75V nominal.
BOOTSTRAP PIN (BOOT)
Bootstrap capacitor input.
SERIAL DATA PIN (SDA)
I
2
C bus pin. Serial data.
SERIAL CLOCK PIN (SCL)
I
2
C bus pin. Serial clock.
LINEAR COMPENSATION PIN (LCMP)
Linear regulator compensation pin.
LINEAR FEEDBACK PIN (LFB)
Linear regulator feedback pin.
LINEAR REGULATOR PIN (LDO)
Input pin of the linear regulator power sequence control
circuit.
CURRENT SENSE PIN (CS)
Current sense pin of the LDO. Over-current protection of
the linear regulator external power MOSFET. The voltage
drop over the LDO current sense resistor RS 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 RS.
LINEAR DRIVE PIN (LDRV)
LDO gate drive of the external pass N-channel MOSFET.
INPUT VOLTAGE 1 PIN (VIN1)
The input supply pin for the integrated circuit. The internal
circuits of the IC are supplied through this pin.
相關(guān)PDF資料
PDF描述
MCZ79076EG Electronic Ignition Control Circuit
MD-S5007 Analog IC
MD-S5008 Analog IC
MD-S5010 Analog IC
MD100 Analog IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ34702EW 功能描述:低壓差穩(wěn)壓器 - LDO QUICCSUPPLY 2 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MCZ34702EWR2 功能描述:低壓差穩(wěn)壓器 - LDO QUICCSUPPLY 2 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
MCZ36304201 制造商:LG Corporation 功能描述:Duct
MCZ36305001 制造商:LG Corporation 功能描述:Duct
MCZ36444401 制造商:LG Corporation 功能描述:Duct
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*