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參數(shù)資料
| 型號： | TPS60111PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.15 A SWITCHED CAPACITOR REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大?。?/td> | 666K |
| 代理商： | TPS60111PWPR |
TPS60111
REGULATED 5V 150mA LOW NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS216B JUNE 1999 JUNE 2008
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
push-pull operating mode
In push-pull operating mode (COM = low), the two single-ended charge pumps operate with 180
° phase shift.
The oscillator signal has a 50% duty cycle. Each single-ended charge pump transfers charge into its transfer
capacitor (CxF) in one-half of the period. During the other half of the period (transfer phase), CxF is placed in
series with the input to transfer its charge to CO. While one single-ended charge pump is in the charge phase,
the other one is in the transfer phase. This operation guarantees an almost constant output current which
ensures a low output ripple. COM is a logic input and should not remain floating. The typical operating circuit
of the TPS60111 in push-pull mode is shown in Figure 1 and Figure 26.
single-ended operating mode
When COM is high, the device runs in single-ended operating mode. The two single-ended charge pumps
period. During the other half of the period (transfer phase), CF is placed in series with the input to transfer its
charge to CO. In single-ended operating mode only one transfer capacitor (CF = C1F + C2F) is required, resulting
in less board space.
IN
C1+
C1
ENABLE
OUT
FB
C2+
C2
SYNC
SKIP COM CLK
PGND GND
INPUT
2.7 V to 5.4 V
CIN
4.7
F
OUTPUT
5 V 150 mA
CO = 15 F
CF = 2.2 F
+
OFF/ON
TPS60111
+
Figure 27. Typical Operating Circuit TPS60111 in Single-Ended Operating Mode
Table 2. Tradeoffs Between Operating Modes
FEATURE
PUSH-PULL MODE
(COM = Low)
SINGLE-ENDED MODE
(COM = High)
Output ripple amplitude
Small amplitude
Large amplitude
Smallest board space
X
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| TPS60111PWPRG4 | 功能描述:電荷泵 Reg 5V Lo-Ns Charge Pump DC-DC Cnvtr RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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| TPS60120EVM-174 | 功能描述:電源管理IC開發(fā)工具 batt Powed Dual Out- put EVM for DSP’s RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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