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參數(shù)資料
| 型號： | RT8058GQW |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter |
| 中文描述： | 1MHz的，甲，高效率的PWM降壓型DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 248K |
| 代理商： | RT8058GQW |
RT8058
Preliminary
2
DS8058-02 August 2007
www.richtek.com
Function Block Diagram
Functional Pin Description
Pin No.
Pin Name
Pin Function
1, 2, 3
Exposed Pad (17) PGND
Power Ground. Connect this pin close to the (
–
) terminal of C
IN
and C
OUT
. The
exposed pad must be soldered to a large PCB and connected to PGND for
maximum power dissipation.
Feedback Input Pin. Receives the feedback voltage from a resistive divider
connected across the output.
Signal Ground. Return the feedback resistive dividers to this ground, which in turn
connects to PGND at one point.
No Internal Connection.
Enable pin. A logical high level at this pin enables the converter, while a logical low
level causes the converter to shut down.
Signal Input Supply. Decouple this pin to GND with a capacitor. Normally VDD is
equal to PVDD. Keep the voltage difference between VDD and PVDD less than
0.5V.
Power Input Supply of converter power stage. Decouple this pin to PGND with a
capacitor.
Internal Power MOSFET Switches Output of converter. Connect this pin to the
inductor.
4
FB
5
GND
6, 8, 16
NC
7
EN
9
VDD
10, 11, 12
PVDD
13, 14, 15
LX
Typical Application Circuit
Driver
Control
Logic
0.3V
OC
Limit
ISEN
Slope
Com
OSC
Output
Clamp
EA
0.6V
Int-SS
POR
GND
FB
PVDD
VDD
PGND
LX
Temp-SEN
OT
EN
VREF
LX
FB
PVDD
VDD
RT8058
PGND
EN
GND
V
IN
2.6V to 5.5V
V
OUT
1.2V/2A
L1
3.3uH
R2
100k
R1
100k
C
22uF
C
10uF
C
22uF
1, 2, 3,
5
4
9
7
10,11,12
13,14,15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8058PQW | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter |
| RT8059 | 制造商:RICHTEK 功能描述:1.5MHz,1A,High Efficiency PWM Step-Down DC/DC Converter |
| RT8059GJ5 | 功能描述:IC REG BUCK SYNC ADJ 1A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP |
| RT8060 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 1A High Efficiency Step-Down Converter |
| RT8060A | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 1A High Efficiency Step-Down Converter |
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