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参数资料
| 型号： | TPS54623RHLT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 15 A SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14 |
| 封装： | 3.50 X 3.50 MM, GREEN, PLASTIC, QFN-14 |
| 文件页数： | 1/35页 |
| 文件大小： | 1468K |
| 代理商： | TPS54623RHLT |
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Vin = 17 V
Vin = 12 V
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
Output Current - A
Efficiency
-
%
Vin = 8 V
PH
PVIN
GND
BOOT
VSENSE
COMP
TPS54622
EN
RT/CLK
SS/TR
Exposed
Thermal
Pad
Css
Rrt
R3
C1
Cboot
Co
Lo
R1
R2
Cin
C2
VIN
VIN
VOUT
PWRGD
TPS54623
SLVSB09
– SEPTEMBER 2011
4.5V to 17V Input, 6A Synchronous Step Down SWIFT
Converter With Light Load
Efficiency and Hiccup Over Current Protection
Check for Samples: TPS54623
1
FEATURES
Power Good Output Monitor for Undervoltage
and Overvoltage
Integrated 26m
/ 19m MOSFETs
Adjustable Input Undervoltage Lockout
Split Power Rail: 1.6V to 17V on PVIN
Supported by SwitcherPro
Software Tool
200kHz to 1.6MHz Switching Frequency
For SWIFT
Documentation and
Light Load Efficient with Pulse Skip
SwitcherPro
, visit http://www.ti.com/swift
Synchronizes to External Clock
0.6V
±1% Voltage Reference Over Temperature
APPLICATIONS
Low 2
A Shutdown Quiescent Current
High Density Distributed Power Systems
Monotonic Start-Up into Pre-biased Outputs
High Performance Point of Load Regulation
–40°C to 150°C Operating Junction
Broadband, Networking and Optical
Temperature Range
Communications Infrastructure
Adjustable Slow Start/Power Sequencing
DESCRIPTION
The TPS54623 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step
down converter which is optimized for small designs through high efficiency and integrating the high-side and
low-side MOSFETs. Further space savings are achieved through current mode control, which reduces
component count, and by selecting a high switching frequency, reducing the inductor
's footprint.
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone
power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and
the open drain power good pins.
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced
by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit
which turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if
the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the
device when the die temperature exceeds the thermal shutdown temperature and enables the part again after
the built-in thermal shutdown hiccup time. The TPS54623 operates at continuous current mode (CCM) at higher
load conditions while skipping pulses to boost the efficiency at light loads.
WHITE SPACE
SIMPLIFIED SCHEMATIC
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
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| TPS54625EVM-608 | 制造商:Texas Instruments 功能描述:TPS54625EVM-608 - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:TPS54625 EVAL MOD |
| TPS54625PWP | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC REG BUCK ADJ 6.5A 14HTSSOP 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 650KHZ HT |
| TPS54625PWPR | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.765V 1 Output 6.5A 14-TSSOP (0.173", 4.40mm Width) Exposed Pad 制造商:texas instruments 系列:D-CAP2?? 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:1 电压 - 输入（最小值）:4.5V 电压 - 输入（最大值）:18V 电压 - 输出（最小值/固定）:0.765V 电压 - 输出（最大值）:5.5V 电流 - 输出:6.5A 频率 - 开关:650kHz 同步整流器:是 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽）裸焊盘 供应商器件封装:14-HTSSOP 标准包装:1 |
| TPS54626EVM-608 | 制造商:Texas Instruments 功能描述:TPS54626EVM-608 - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:TPS54626 EVAL MOD |
| TPS54626PWP | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 650KHZ HT 制造商:Texas Instruments 功能描述:18V 6.5A DCAP2 sync converter |
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