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參數(shù)資料
| 型號(hào)： | TPS62020DRC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 600 mA/1.25 MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER |
| 中文描述： | 600 mA/1.25兆赫高效降壓型轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 4/18頁(yè) |
| 文件大小： | 425K |
| 代理商： | TPS62020DRC |
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FB
PGND
SW
VIN
EN
Undervoltage
Lockout
Bias supply
Control Logic
+
LoadComparator
1.25 MHz
Oscillator
Vref = 0.5 V
Driver
Shootthru
Logic
P
P
N
P
Start
+
+
Current limit Comparator
SkipComparator
Gm
Saw Tooth
Generator
V
I
+
Vcomp
S
R
+
Comp High
Comp Low
Comp Low 2
Comp High
Comp Low
Comp Low 2
+
Comparator
Compensation
Ref
Ref
PGND
VIN
GND
MODE
(See Note A)
MODE
SW
TPS62020, TPS62021
SLVS076B–JUNE 2003–REVISED APRIL 2004
PIN ASSIGNMENTS (continued)
Terminal Functions
TERMINAL
NAME
EN
I/O
DESCRIPTION
NO.
1
I
Enable. Pulling EN to ground forces the device into shutdown mode. Pulling EN to V
I
enables the device. EN
should not be left floating and must be terminated.
Supply voltage input
Analog ground
Feedback. Connect an external resistor divider to this pin.
The difference between TPS62020 and TPS62021 is the logic level of the MODE pin. The TPS62021 has an
active-low MODE pin. The TPS62020 is forced into fixed-frequency PWM mode by pulling the MODE pin high.
Pulling the MODE pin low enables the Power Save Mode, operating in PFM mode (Pulse frequency modulation)
at light load current, and in fixed frequency PWM at medimum to heavy load currents. In contrast, the TPS62021
is forced into PWM mode by pulling the MODE pin low.
This is the switch pin of the converter and connected to the drain of the internal power MOSFETs
Power ground
VIN
GND
FB
MODE
MODE
2, 3
4
5
6
I
I
I
SW
PGND
7, 8
9, 10
I/O
FUNCTIONAL BLOCK DIAGRAM
NOTE A: The TPS62020 has an active-high MODE pin. The TPS62020 has an active-low MODE pin.
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS62020DRCR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62020DRCRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62020EVM-019 | 功能描述:電源管理IC開發(fā)工具 TPS62020-019 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS62021DGQR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62021DGQRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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