参数资料
型号: TPS54160ADRCR
厂商: Texas Instruments
文件页数: 13/55页
文件大小: 0K
描述: IC REG BUCK ADJ 1.5A 10SON
标准包装: 3,000
系列: SWIFT™, Eco-Mode™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 58 V
输入电压: 3.5 V ~ 60 V
PWM 型: 电流模式
频率 - 开关: 100kHz ~ 2.5MHz
电流 - 输出: 1.5A
同步整流器:
工作温度: -40°C ~ 150°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 10-SON 裸露焊盘(3x3)
8.2 Functional Block Diagram
SLVSB56C – MAY 2012 – REVISED FEBRUARY 2014
PWRGD
6
EN
3
VIN
2
Shutdown
Enable
Thermal
Shutdown
UVLO
UV
Logic
Comparator
Shutdown
Shutdown
Logic
OV
Enable
Threshold
Boot
Charge
VSENSE 7
Voltage
Reference
ERROR
AMPLIFIER
Minimum
Clamp
Pulse
Skip
PWM
Comparator
Boot
UVLO
Current
Sense
1 BOOT
SS/TR 4
Shutdown
Slope
Compensation
Logic
And
PWM Latch
COMP 8
Frequency
Shift
10 PH
11 POWERPAD
Overload
Maximum
Recovery
Clamp
Oscillator
TPS54160A Block Diagram
9 GND
with PLL
5
RT/CLK
8.3 Feature Description
8.3.1 Fixed Frequency PWM Control
The TPS54160A uses an adjustable fixed frequency, peak current mode control. The output voltage is compared
through external resistors on the VSENSE pin to an internal voltage reference by an error amplifier which drives
the COMP pin. An internal oscillator initiates the turn on of the high-side power switch. The error amplifier output
is compared to the high-side power switch current. When the power switch current reaches the level set by the
COMP voltage, the power switch is turned off. The COMP pin voltage will increase and decrease as the output
current increases and decreases. The device implements a current limit by clamping the COMP pin voltage to a
maximum level. The Eco-mode? is implemented with a minimum clamp on the COMP pin.
8.3.2 Slope Compensation Output Current
The TPS54160A adds a compensating ramp to the switch current signal. This slope compensation prevents sub-
harmonic oscillations. The available peak inductor current remains constant over the full duty cycle range.
8.3.3 Pulse Skip Eco-mode
The TPS54160A enters the pulse skip mode when the voltage on the COMP pin is the minimum clamp value.
The TPS54160A operates in a pulse skip mode at light load currents to improve efficiency. The peak switch
current during the pulse skip mode will be the greater value of 50mA or the peak inductor current that is a
function of the minimum on time, input voltage, output voltage and inductance value. When the load current is
low and the output voltage is within regulation the device will enter a sleep mode and draw only 116 μ A input
Copyright ? 2012–2014, Texas Instruments Incorporated
Product Folder Links: TPS54160 TPS54160A
13
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TPS54160ADRCT 功能描述:直流/直流开关转换器 3.5-60Vin,1.5A SD Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
TPS54160DGQ 功能描述:直流/直流开关调节器 3.5-60V 1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS54160DGQG4 功能描述:直流/直流开关调节器 3.5-60V,1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS54160DGQR 功能描述:直流/直流开关调节器 3.5-60V 1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS54160DGQRG4 功能描述:直流/直流开关调节器 3.5-60V,1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5