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参数资料
| 型号： | TPS65023RSBT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| 封装： | 5 X 5 MM, GREEN, PLASTIC, QFN-40 |
| 文件页数： | 33/53页 |
| 文件大小： | 1274K |
| 代理商： | TPS65023RSBT |
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VDCDC3
DCDC3_EN
DEFDCDC3
AGND
PGND
L3
R1
R2
VO
L
CO
VCC
VINDCDC3
CI
1 F
m
10R
V(bat)
V
OUT
DEFDCDCx
=V
x
R1+R2
R2
R1=R2x
V
OUT
V
DEFDCDCx
-R2
()
www.ti.com
SLVS670I – JUNE 2006 – REVISED JULY 2010
Table 6. Possible Capacitors
CAPACITOR VALUE
CASE SIZE
COMPONENT SUPPLIER
COMMENTS
22 mF
1206
TDK C3216X5R0J226M
Ceramic
22 mF
1206
Taiyo Yuden JMK316BJ226ML
Ceramic
22 mF
0805
TDK C2012X5R0J226MT
Ceramic
22mF
0805
Taiyo Yuden JMK212BJ226MG
Ceramic
10 mF
0805
Taiyo Yuden JMK212BJ106M
Ceramic
10 mF
0805
TDK C2012X5R0J106M
Ceramic
Output Voltage Selection
The DEFDCDC1, DEFDCDC2, and DEFDCDC3 pins are used to set the output voltage for each step-down
converter. See Table 7 for the default voltages if the pins are pulled to GND or to VCC. If a different voltage is
needed, an external resistor divider can be added to the DEFDCDCx pin as shown in Figure 36.
The output voltage of VDCDC1 is set with the I2C interface. If the voltage is changed from the default, using the
DEFCORE register, the output voltage only depends on the register value. Any resistor divider at DEFDCDC1
does not change the voltage set with the register.
Table 7.
PIN
LEVEL
DEFAULT OUTPUT VOLTAGE
VCC
1.6 V
DEFDCDC1
GND
1.2 V
VCC
3.3 V
DEFDCDC2
GND
1.8 V
VCC
3.3 V
DEFDCDC3
GND
1.8 V
Using an external resistor divider at DEFDCDCx:
Figure 36. External Resistor Divider
When a resistor divider is connected to DEFDCDCx, the output voltage can be set from 0.6 V up to the input
voltage V(bat). The total resistance (R1+R2) of the voltage divider should be kept in the 1-MR range in order to
maintain a high efficiency at light load.
V(DEFDCDCx) = 0.6 V
(8)
Copyright 2006–2010, Texas Instruments Incorporated
39
Product Folder Link(s) : TPS65023, TPS65023B
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相关代理商/技术参数 |
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| TPS65023RSBT | 制造商:Texas Instruments 功能描述:Power Management IC |
| TPS65023RSBTG4 | 功能描述:电池管理 6-Channel Power Management IC 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 |
| TPS650240EVM-331 | 功能描述:电源管理IC开发工具 TPS650240EVM331 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 |
| TPS650240RHBR | 功能描述:电池管理 Pwr Mgmt ICs for Li-Ion Powered Sys 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 |
| TPS650240RHBRG4 | 功能描述:电池管理 Pwr Mgmt ICs 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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