參數(shù)資料
型號(hào)： 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(yè)數(shù)： 2/24頁(yè)
文件大小： 666K
代理商： TPS60111PWPR
TPS60111
REGULATED 5V 150mA LOW NOISE
CHARGE PUMP DC/DC CONVERTER
SLVS216B JUNE 1999 JUNE 2008
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description
operating principle
The TPS60111 charge pump provides a regulated 5-V output from a 2.7-V to 5.4-V input. It delivers a maximum
load current of 150 mA. Designed specifically for space critical battery powered applications, the complete
charge pump circuit requires only four external capacitors. The circuit can be optimized for highest efficiency
at light loads or lowest output noise. The TPS60111 consists of an oscillator, a 1.22-V bandgap reference, an
internal resistive feedback circuit, an error amplifier, high current MOSFET switches, a shutdown/start-up
circuit, and a control circuit (Figure 25).
C1+
C1
ENABLE
OUT
FB
0
°
180
°
PGND
C1F
IN
CHARGE PUMP 2
C2+
C2
OUT
PGND
C2F
IN
T22
T21
OSCILLATOR
GND
SKIP
COM
CLK
VREF +
+
CONTROL
CIRCUIT
0.8
× VIN
+
+
SHUTDOWN/
START-UP
CONTROL
SYNC
T11
T12
T13
T14
T24
T23
CHARGE PUMP 1
Figure 25. Functional Block Diagram TPS60111
The oscillator runs at a 50% duty cycle. The device consists of two single-ended charge pumps which operate
with 180
° phase shift. 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.
If the clock were to run continuously, this process would eventually generate an output voltage equal to two times
the input voltage (hence the name doubler). In order to provide a regulated fixed output voltage of 5 V, the
TPS60111 uses either pulse-skip mode or constant-frequency mode. Pulse-skip mode and constant-frequency
mode are externally selected via the SKIP input pin.
相關(guān)PDF資料
PDF描述
TPS60123PWPR 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TPS60121PWPRG4 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TPS60122PWPR 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TPS60124PWP 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
TPS60121PWPR 0.2 A SWITCHED CAPACITOR REGULATOR, 450 kHz SWITCHING FREQ-MAX, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
TPS60120 制造商:TI 制造商全稱:Texas Instruments 功能描述:REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS
TPS60120_07 制造商:TI 制造商全稱:Texas Instruments 功能描述:REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS
TPS60120EVM-142 功能描述:電源管理IC開(kāi)發(fā)工具 2 batt cells 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
TPS60120EVM-174 功能描述:電源管理IC開(kāi)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(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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