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参数资料
| 型号： | TPS650061RUKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.68 A SWITCHING REGULATOR, 2847 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | 3 X 3 MM, PLASTIC, QFN-20 |
| 文件页数： | 7/34页 |
| 文件大小： | 0K |
| 代理商： | TPS650061RUKR |
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Z
LOAD
A
EN_LDO1
VLDO1
VINLDO1
FB_LDO1
P
A
DISCHG
AGND
PGND
+
-
θJA Diode
V
REF(LD01)
C
O(LD01)
R
LOD1_2
R
LDO1_1
(
)
(
)
LDO1_1
LDO1_2
LDO1
FB_LDO1
LDO1_2
LDO1_1
LDO1_2
LDO1
LDO1_2
R
+ R
V
= V
x
R
+ R
V
= 0.5V x
R
www.ti.com
SLVS810B – JUNE 2009 – REVISED AUGUST 2010
Figure 24. LDO Block Diagram and Output Voltage Setting
The output voltages of the LDOs are set by Equation 2:
(2)
The combined resistance of RLDO1_1 and RLDO1_2 should be less than 1M.
Oscillator and Spread Spectrum Clock Generation
The TPS6500x contains an internal oscillator running at a typical frequency of 2.25MHz. This frequency is the
fundamental switching frequency of the step-down converter when it is running in PWM mode. An additional
circuit in the oscillator block implements spread spectrum clocking, which modulates the main switching
frequency when the device is in PWM mode. This spread spectrum oscillation reduces the power that may cause
EMI. When viewed in the frequency domain, the SSC spreads out the frequency that may introduce interference
while simultaneously reducing the power. Since the frequency is continually shifting, the amount of time the
switcher spends at any single frequency is reduced. This reduction in time means that the receiver that may see
the interference has less time to integrate the interference.
Different spin versions of SSC settings are also feasible; contact a Texas Instruments sales representative for
more information.
Copyright 2009–2010, Texas Instruments Incorporated
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS650061RUKT | 功能描述:PMIC 解决方案 2.25MHz Step-Down Converter RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| TPS65010EVM-230 | 功能描述:电源管理IC开发工具 TPS65010-230 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS65010RGZR | 功能描述:电池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS65010RGZRG4 | 功能描述:电池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS65010RGZT | 功能描述:电池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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