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參數資料
| 型號： | IRU3037 |
| 廠商： | International Rectifier |
| 英文描述： | 8-PIN SYNCHRONOUS PWM CONTROLLER |
| 中文描述： | 8引腳同步PWM控制器 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 220K |
| 代理商： | IRU3037 |
IRU3037 / IRU3037A
1
Rev. 2.8
03/10/03
www.irf.com
TYPICAL APPLICATION
DESCRIPTION
The IRU3037 controller IC is designed to provide a low
cost synchronous Buck regulator for on-board DC to DC
converter applications. With the migration of today’s ASIC
products requiring low supply voltages such as 1.8V and
lower, together with currents in excess of 3A, traditional
linear regulators are simply too lossy to be used when
input supply is 5V or even in some cases with 3.3V
input supply. The IRU3037 together with dual N-channel
MOSFETs such as IRF7313, provide a low cost solution
for such applications. This device features an internal
200KHz oscillator (400KHz for "A" version), under-volt-
age lockout for both Vcc and Vc supplies, an external
programmable soft-start function as well as output un-
der-voltage detection that latches off the device when an
output short is detected.
Synchronous Controller in 8-Pin Package
Operating with single 5V or 12V supply voltage
Internal 200KHz Oscillator
(400KHz for IRU3037A)
Soft-Start Function
Fixed Frequency Voltage Mode
500mA Peak Output Drive Capability
Protects the output when control FET is shorted
APPLICATIONS
DDR memory source sink Vtt application
Low cost on-board DC to DC such as 5V to 3.3V,
2.5V or 1.8V
Graphic Card
Hard Disk Drive
PACKAGE ORDER INFORMATION
FEATURES
8-PIN SYNCHRONOUS PWM CONTROLLER
T
A
(°C)
0 To 70
0 To 70
0 To 70
0 To 70
DEVICE PACKAGE FREQUENCY
IRU3037CF 8-Pin Plastic TSSOP (F) 200KHz
IRU3037CS 8-Pin Plastic SOIC NB (S) 200KHz
IRU3037ACF 8-Pin Plastic TSSOP (F) 400KHz
IRU3037ACS 8-Pin Plastic SOIC NB (S) 400KHz
Data Sheet No. PD94173
Figure 1 - Typical application of IRU3037 or IRU3037A.
IRU3037
U1
Vcc
Vc
HDrv
LDrv
Fb
Gnd
Comp
SS/SD
C3
1uF
C4
1uF
C8
0.1uF
C9
2200pF
R4
24k
Q1
1/2 of IRF7313
Q2
1/2 of IRF7313
R5
1.24K, 1%
R3
249, 1%
L2
D05022P-562, 5.6uH, 5.3A
L1
1uH
C2
10TPB100M,
100uF, 55m
C1
47uF
1.5V/5A
C7
2x 6TPC150M,
150uF, 40m
12V
5V
相關PDF資料 |
PDF描述 |
|---|---|
| IRU3037A | 8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037ACF | 8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037ACS | 8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037CF | 8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037CS | RES CHIP 383OHM 1/10 1% 100PP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| IRU3037A | 制造商:IRF 制造商全稱:International Rectifier 功能描述:8-PIN SYNCHRONOUS PWM CONTROLLER |
| IRU3037ACF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IRU3037ACFPBF | 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IRU3037ACFTRPBF | 功能描述:開關變換器、穩壓器與控制器 8 PWM 200 KHZ 500mA Synch CTRL 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 |
| IRU3037ACS | 功能描述:IC REG CTRLR BUCK PWM VM 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數:1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
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