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參數資料
| 型號： | SC196A |
| 廠商： | Semtech Corporation |
| 英文描述： | 1.5A Synchronous Buck Converter with Integrated Power Devices |
| 中文描述： | 1.5A的同步降壓轉換器，集成了功率器件 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 551K |
| 代理商： | SC196A |
www.semtech.com
SC196A
1.5A Synchronous Buck Converter
with Integrated Power Devices
POWER MANAGEMENT
Description
November 2, 2006
Typical Application Circuit
Applications
The SC96A is a synchronous step-down converter with
integrated power devices. The SC96A is designed for
single-cell Li-Ion battery applications but can also be used
in fixed 3.3V or 5V applications. The switching frequency
is nominally set to MHz, allowing the use of small
inductors and capacitors. The maximum current rating of
the internal MOSFET switches allows a DC output current
of 1.5A.
Four programable output voltages
1.00V/1.05V/1.20V/
1.80V are available. See SC196 with external feedback
for other output voltage settings.
The SC196A has a flexible clocking methodology that
allows it to be synchronized to an external oscillator or
controlled by the internal oscillator. The device can
operate in either forced PWM mode or in PSAVE mode. If
PSAVE mode is enabled, the part will automatically enter
PFM at light loads to maintain maximum efficiency across
the full load range.
For noise sensitive applications, PSAVE mode can be
disabled by synchronizing to an external oscillator or
pulling the SYNC/PWM pin high. Shutdown turns off all
the control circuitry to achieve a typical shutdown current
of 0.μA.
Cell phones
Wireless communication chipset power
Personal media player
Notebook and sub-notebook computers
PDAs and mobile communicators
WLAN peripherals
Up to 93% efficiency
1.00V/1.05V/1.20V/1.80V selectable output voltage
Output current — 1.5A
Quiescent current — 7μA
Input range — 2.7V to 5.5V
Dynamic voltage positioning capability
Fixed 1MHz frequency or 750kHz to 1.25MHz
synchronized operation
PSAVE operation to maximize efficiency at light loads
Minimal external components
Fast transient response
100% duty cycle in dropout
Soft-start
Over-temperature and short-circuit protection
Space-saving lead-free package — MLP-10, 3 x 3mm
Features
SC196A
VIN
EN
SYNC/PWM VOUT
VID0
VID1 PGND
MODE GND
LX
C
IN
L1
C
OUT
10μF
10μF
4.7μH
V
IN
2.7V to 5.5V
V
OUT
1.05V
1.5A
相關PDF資料 |
PDF描述 |
|---|---|
| SC196AEVB | 1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196AMLTRT | 1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196 | 1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196EVB | 1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196ULTRT | 1.5A Synchronous Buck Converter with Integrated Power Devices |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SC196A_08 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196AEVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196AMLTRT | 功能描述:IC REG BUCK SYNC 1.5A 10MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數: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: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 供應商設備封裝:8-MSOP |
| SC196EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1.5A Synchronous Buck Converter with Integrated Power Devices |
| SC196UL.TRT | 制造商:SEMTECH 功能描述:I.C. |
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