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LM21215A中文资料
LM21215A数据手册规格书PDF详情
1 Features
1• High-Efficiency Synchronous DC/DC Converter
– Input Voltage Range of 2.95 V to 5.5 V
– Adjustable Output Voltage From 0.6 V to VIN
– Output Current as High as 15 A
• Frequency Synchronization 300 kHz to 1.5 MHz
• Integrated 7-mΩ PMOS Buck Switch Supports
100% Duty Cycle for Low Dropout Voltage
• Integrated 4.3-mΩ NMOS Synchronous Rectifier
Eliminates Schottky Diode
• Accurate ±1% Internal Voltage Reference
• Automatic Diode Emulation Mode for Improved
Efficiency at Light Loads
• Monotonic Pre-Biased Startup
• Internal 0.5-ms or Externally Adjustable Soft Start
• Output Voltage Tracking Capability
• Ultra-Fast Line and Load Transient Response
– Voltage-Mode PWM Control
– Wide-Bandwidth Voltage Loop Error Amplifier
• Precision Enable with Hysteresis
• Integrated OVP, UVP, OCP, and UVLO
• Open-Drain Power Good Indicator
• Thermal Shutdown Protection With Hysteresis
• Thermally-Enhanced HTSSOP-20 Package
• Create a custom design using the LM21215A with
the WEBENCH® Power Designer
2 Applications
• Telecommunications Infrastructure
• DSP and FPGA Core Voltage Supplies
• High Efficiency POL Conversion
• Embedded Computing, Servers and Storage
3 Description
The LM21215A is a synchronous buck DC-DC
converter that delivers up to 15 A of output current at
output voltages as low as 0.6 V. Operating over an
input voltage range of 2.95 V to 5.5 V with ultra-high
efficiency, the LM21215A suits a wide variety of low
voltage systems. The voltage-mode control loop with
high gain-bandwidth error amplifier provides high
noise immunity, narrow duty cycle capability and is
easily compensated for stable operation with any type
of output capacitor, providing maximum flexibility and
ease of use.
The LM21215A features internal overvoltage
protection (OVP) and cycle-by-cycle overcurrent
protection (OCP) for increased system reliability. A
precision enable pin and integrated UVLO allow turnon
of the device to be tightly controlled and
sequenced. Startup inrush currents are limited by an
internally-fixed or externally-adjustable soft-start
circuit. An integrated open-drain PGOOD indicator
provides fault reporting and supply sequencing.
Other features include auxiliary voltage rail tracking,
monotonic startup into pre-biased loads, and
switching frequency synchronization to an external
clock signal between 300 kHz and 1.5 MHz for beatfrequency
sensitive and multi-regulator applications.
The LM21215A is offered in a thermally-enhanced
20-pin HTSSOP package with an exposed pad that is
soldered to the PCB to achieve a very low junction-toboard
thermal impedance.
LM21215A产品属性
- 类型
描述
- 型号
LM21215A
- 制造商
TI
- 制造商全称
Texas Instruments
- 功能描述
LM21215A-1 15A High Efficiency Synchronous Buck Regulator with Frequency Synchronization
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
2450+ |
HTSSOP20 |
6541 |
只做原装正品假一赔十为客户做到零风险!! |
|||
TI/德州仪器 |
25+ |
HTSSOP20 |
32000 |
TI/德州仪器全新特价LM21215AMH-1/NOPB即刻询购立享优惠#长期有货 |
|||
TI |
24+ |
HTSSOP |
11600 |
只做原装假一赔十,一级代理价格优势 |
|||
Texas Instruments |
25+ |
20-HTSSOP |
18000 |
TI优势渠道,大量原装库存现货,交期快,欢迎询价。 |
|||
TI(德州仪器) |
24+ |
TSSOP-20-EP |
1083 |
特价优势库存质量保证稳定供货 |
|||
TI(德州仪器) |
24+ |
TSSOP-20-EP |
5239 |
百分百原装正品,可原型号开票 |
|||
TI/德州仪器 |
24+ |
HTSSOP20 |
10000 |
只有原装 |
|||
NS/TI |
17+ |
TSSOP |
6200 |
100%原装正品现货 |
|||
NS/TI |
25+ |
TSSOP |
2500 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
|||
NS |
2016+ |
HTSSOP20 |
3900 |
只做原装,假一罚十,公司可开17%增值税发票! |
LM21215AMHE-1/NOPB 价格
参考价格:¥33.3991
LM21215A 资料下载更多...
LM21215A相关电子新闻
LM21215AMHE-1/NOPB
优势渠道
2023-6-14
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