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参数资料
| 型号： | LTC3605EUF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 5A 24QFN |
| 标准包装： | 91 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 14.9 V |
| 输入电压： | 4 V ~ 15 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 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： | 24-WFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 24-QFN（4x4） |
| 产品目录页面： | 1335 (CN2011-ZH PDF) |
LTC3605
15V, 5A Synchronous
Step-Down Regulator
High Efficiency: Up to 96%
5A Output Current
4V to 15V V IN Range
Integrated Power N-Channel MOSFETs
Adjustable Frequency 800kHz to 4MHz
PolyPhase ? Operation (Up to 12 Phases)
Output Tracking
0.6V ±1% Reference Accuracy
Current Mode Operation for Excellent Line and Load
Shutdown Mode Draws Less Than 15μA Supply
Available in 24-Pin (4mm × 4mm) QFN Package
Point of Load Power Supply
Portable Instruments
Distributed Power Systems
Battery-Powered Equipment
FEATURES
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(70mΩ Top and 35mΩ Bottom)
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Transient Response
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Current
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APPLICATIONS
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DESCRIPTION
The LTC ? 3605 is a high efficiency, monolithic synchronous
buck regulator using a phase lockable controlled on-time
constant frequency, current mode architecture. PolyPhase
operation allows multiple LTC3605 regulators to run out of
phase while using minimal input and output capacitance.
The operating supply voltage range is from 15V down to
4V, making it suitable for dual lithium-ion battery inputs
as well as point of load power supply applications from
a 12V or 5V rail.
The operating frequency is programmable from 800kHz to
4MHz with an external resistor. The high frequency capabil-
ity allows the use of small surface mount inductors. For
switching noise sensitive applications, it can be externally
synchronized from 800kHz to 4MHz. The PHMODE pin
allows user control of the phase of the outgoing clock
signal. The unique constant frequency/controlled on-time
architecture is ideal for high step-down ratio applications
that are operating at high frequency while demanding
fast transient response. Two internal phase-lock loops
synchronize the internal oscillator to the external clock
and also servos the regulator on-time to lock on to either
the internal clock or the external clock if it’s present.
L , LT, LTC, LTM, PolyPhase, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners. Protected by U.S. Patents, including 5481178, 5847554, 6580258, 6304066, 6476589,
6774611.
TYPICAL APPLICATION
CLKIN
PGOOD
220pF
V OUT = 1.2V
V OUT = 3.3V
V OUT = 1.2V
V IN
4V TO 15V
High Efficiency 1MHz, 5A Step-Down Regulator
22μF
× 2 PV IN SV IN
CLKOUT INTV CC
2.2μF
BOOST
LTC3605 0.1μF 1μH
SW
V ON 11.5k
V IN RUN FB
ITH 2.55k
RT
16k
162k
47μF
× 2
PGND
V OUT
3.3V
Efficiency and Power Loss
100
V IN = 12V V OUT = 3.3V
90 f = 1MHz
80
70
60
50
40
30
20
10
0
10 100 1000
OUTPUT CURRENT (mA)
10
1
0
0.1
10000
3605 TA01a
3605 TA01b
3605fc
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3605IUF#PBF | 功能描述:IC REG BUCK SYNC ADJ 5A 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3605IUF#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 5A 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3606BEDD#PBF | 功能描述:IC REG BUCK SYNC ADJ 0.8A 8DFN 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 |
| LTC3606BEDD#PBF | 制造商:Linear Technology 功能描述:IC SYNC STEP-DOWN DC/DC CONVERTER DFN8 |
| LTC3606BEDD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 0.8A 8DFN 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:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
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