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| 型号： | SP6128AEY-L |
| 厂商： | Exar Corporation |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 14TSSOP |
| 标准包装： | 94 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 90% |
| 电源电压： | 3 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
?
SP6128A
Low Voltage, Synchronous Step Down PWM Controller
Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters
■
■
Optimized for Single Supply, 3V - 5.5V Applications
High Efficiency: Greater Than 95% Possible
GL
PV CC
1
2
14
13
BST
GH
■
■
■
■
■
Discontinuous Startup for Precharged Output
Accurate Fixed 300kHz Frequency Operation
Fast Transient Response
Internal Soft Start Circuit
Accurate 0.8V Reference Allows Low Output
V CC
PGND
GND
COMP
NC
3
4
5
6
7
SP6128A
14 pin TSSOP
12
11
10
9
8
SWN
I SET
V FB
NC
NC
Voltages
■
■
■
■
■
■
■
Resistor Programmable Output Voltage
Resistor Programmable Overcurrent Threshold
Loss-less Current Limit with High Side R DS(ON)
Sensing
Hiccup Mode Current Limit Protection
Dual N-Channel MOSFET Synchronous Driver
Quiescent Current: 500 μ A, 30 μ A in Shutdown
14 pin TSSOP
Now Available in Lead Free Packaging
APPLICATIONS
■ DSP
■ Microprocessor Core
■ I/O & Logic
■ Industrial Control
■ Distributed Power
■ Low Voltage Power
DESCRIPTION
The SP6128A is a fixed frequency, voltage mode, synchronous PWM controller designed to
work from a single 5V or 3.3V input supply, providing excellent AC and DC regulation for high
efficiency power conversion. Requiring only few external components, the SP6128A pack-
aged in an 14-pin TSSOP, is especially suited for low voltage applications where cost, small
size and high efficiency are critical. The operating frequency is internally set to 300kHz,
allowing small inductor values and minimizing PC board space. The SP6128A drives two
N-channel power MOSFETs for improved efficiency and includes an accurate 0.8V reference
for low output voltage applications.
TYPICAL APPLICATION CIRCUIT
3V to 5.5V
C5
C6
C7
D1
10 μ F
10 μ F
10 μ F
MBR0530
R1
5
1
2
GL BST
PV CC SP6128A GH
14
13
C4
1 μ F
R3
8k
Q1
FDS6690A
L1
1.0 μ H
2.5V/10A
3
4
V CC
PGND
SWN
I SET
12
11
C1
2.2 μ F
5
GND
V FB
10
D2
STPS2L25U
C8
10 μ F
C9
10 μ F
C10
10 μ F
C11
470 μ F
6
7
COMP
NC
NC
NC
9
8
Q2
FDS6690A
C12
R4
1.7k
4.7nF
C3
68pF
R5
R2
7.87k C2 4.7n
800
Rev. 08/19/05
SP6128A Low Voltage, Synchronous Step Down PWM Controller
1
? Copyright 2005 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6128AEY-L/TR | 功能描述:电压模式 PWM 控制器 Low Voltage Synchronous Step Dwn RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| SP6128AHY | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6128AHY/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6128AHY-L | 功能描述:开关变换器、稳压器与控制器 Low Voltage Synchronous Step Dwn RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SP6128AHY-L/TR | 功能描述:电压模式 PWM 控制器 Low Voltage Synchronous Step Dwn RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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