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参数资料
| 型号： | TPS62051DGSR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.4 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 7/25页 |
| 文件大小： | 602K |
| 代理商： | TPS62051DGSR |
www.ti.com
PGND
FB
PG
VIN
8
LBO
GND
SYNC
EN
LBI
TPS62050
SW
1
6
7
3
2
9
5
4
10
L1 = 10
H
VO = 5 V
R1 =
820 k
C(ff) = 6.8 pF
R2 = 91 k
Co = 22 F
Ci = 10 F
VI
R5
130 k
R6
100 k
R3
1 M
R4
1 M
TDK
C3216X5R1A106M
Taiyo Yuden
JMK316BJ226ML
WE PD 744 777 10
Quiescent Current Measurements and Efficiency Were Taken
With: R5 = Open, R4 = Open, LBI Connected to GND.
V
O +
V
FB
R1 ) R2
R2
R1 + R2
V
O
V
FB
–R2
V
FB +
0.5V
TPS62050, TPS62051
TPS62052, TPS62054, TPS62056
SLVS432D – SEPTEMBER 2002 – REVISED OCTOBER 2003
APPLICATION INFORMATION (continued)
No Load Operation
If the converter operates in the forced PWM mode and there is no load connected to the output, the converter
regulates the output voltage by allowing the inductor current to reverse for a short period of time.
STANDARD CIRCUIT FOR ADJUSTABLE VERSION
Table 1. Values
NOMINAL OUTPUT VOLTAGE
EQUATION
POSSIBLE RESISTOR COMBINATION TYPICAL FEEDBACK CAPACITOR
0.7 V
R1 = 0.4 x R2
R1 = 270 k, R2 = 680 k
C(ff) = 22 pF
1.2 V
R1 = 1.4 x R2
R1 = 510 k, R2 = 360 k (1.21 V)
C(ff) = 6.8 pF
1.5 V
R1 = 2 x R2
R1 = 300 k, R2 = 150 k (1.50 V)
C(ff) = 6.8 pF
1.8 V
R1 = 2.6 x R2
R1 = 390 k, R2 = 150 k (1.80 V)
C(ff) = 6.8 pF
2.5 V
R1 = 4 x R2
R1 = 680 k, R2 = 169 k (2.51 V)
C(ff) = 6.8 pF
3.3 V
R1 = 5.6 x R2
R1 = 560 k, R2 = 100 k (3.30 V)
C(ff) = 6.8 pF
5 V
R1 = 9 x R2
R1 = 820 k, R2 = 91 k (5.0 V)
C(ff) = 6.8 pF
15
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| TPS62051DGSRG4 | 功能描述:直流/直流开关调节器 Adj 800-mA 10V Vin Step-Down 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 |
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| TPS62052DGSR | 功能描述:直流/直流开关调节器 1.5V Out 800mA Step-Down 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 |
| TPS62052DGSRG4 | 功能描述:直流/直流开关调节器 1.5V Out 800mA Step-Down 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 |
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