参数资料
| 型号： | SC196AMLTRT |
| 厂商： | Semtech |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 1.5A 10MLP |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1V，1.05V，1.2V，1.8V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MLP（3x3） |
| 其它名称： | SC196AMLDKR |
SC196A
1.5A Synchronous Buck Converter
with Integrated Power Devices
POWER MANAGEMENT
Description
The SC196A is a synchronous step-down converter with
integrated power devices. The SC196A is designed for
single-cell Li-Ion battery applications but can also be used
in ? xed 3.3V or 5V applications. The switching frequency
is nominally set to 1MHz, 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 ? exible 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 ef ? ciency 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 0.1 μ A.
Typical Application Circuit
Features
Up to 93% ef ? ciency
1.00V/1.05V/1.20V/1.80V selectable output voltage
Output current — 1.5A
Quiescent current — 17 μ A
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 ef ? ciency 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
Applications
Cell phones
Wireless communication chipset power
Personal media player
Notebook and sub-notebook computers
PDAs and mobile communicators
WLAN peripherals
V IN
2.7V to 5.5V
C IN
SC196A
VIN
EN
SYNC/PWM
VID0
LX
VOUT
L1
4.7 μ H
C OUT
V OUT
1.05V
1.5A
July 14, 2008
10 μ F
VID1
MODE
1
PGND
GND
10 μ F
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC196EVB | 制造商:SEMTECH 制造商全称: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. |
| SC196ULTRT | 功能描述:IC REG BUCK SYNC ADJ 1.5A 10MLPD RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| SC197 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator |
| SC1972 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:NPN EPITAXIAL PLANAR TYPE(for RF power amplifiers on VHF band Mobile radio applications) |
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