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參數(shù)資料
| 型號(hào)： | AS1302-BWLT |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 5V/30mA Inductorless Boost |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 1173K |
| 代理商： | AS1302-BWLT |
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Datasheet
1 General Description
The AS1302 is a 30mA inductorless boost converter
using a double H-bridge charge-pump topology with two
external flying capacitors. The AS1302 charge pump
features 1:2 and 2:3 operation modes as well as a 1:1
operation mode where the input is directly connected to
the output.
The AS1302 runs on a 1.2MHz fixed frequency and is
utilized with a low noise regulation scheme to allow
usage together with sensitive RF circuitry from the same
battery supply. Additionally to increase efficiency the
AS1302 switches to 49kHz at light loads.
Designed to reside in portable and space limited
equipment the 1.2MHz charge pump converts a 2.9V to
5.15V input to regulated 5V output with 3% accuracy.
The shutdown function reduces the supply current to
<1μA and disconnects the load from the output. The
integrated soft-start circuitry prevents high inrush
currents being drawn from the battery during start-up.
The AS1302 includes built-in under-voltage lockout,
short circuit-, and thermal protection circuitry.
The AS1302 is available in TDFN (3x3x0.8mm) 10-pin
and an extremely small 1.2x1.2mm WL-CSP 8-bumps
package with 0.4mm pitch.
2 Key Features
!
Up to 90% Efficiency
!
2.9V to 5.15V Input Voltage
!
Regulated 5V Output
!
Automatic Mode Switching
!
<1μA Shutdown Current
!
Startup with Full Load (within 1ms)
!
Up to 30mA Load Current
!
Short Circuit Protection
!
Output Disconnected During Shutdown
!
Soft-Start
!
No Inductor Required
!
Small External Components Required
(C
OUT
=2.2μF, C
FLY
=220nF)
!
Low Noise Fixed Frequency (1.2MHz, 49kHz)
Charge Pump:
- 1:1 Battery Feed Through Mode
- 2:3 Single Phase Mode
- 1:2 Single Phase Mode
!
Package Options:
- TDFN (3x3x0.8mm) 10-pin
- WL-CSP 8-bumps with 0.4mm Pitch
3 Applications
The device is ideal for two or three AA cells or a single
Li-Ion battery cell to 5V conversion, mobile phones,
portable instruments, microprocessor based systems
and remote data-acquisition systems.
Figure 1. AS1302 - Typical Application Diagram
V
BATT
2.9V to 5.15V
C
BAT
2.2μF
AS1302
VBATT
EN
GND
VOUT
C1+
C1-
C2+
C2-
V
OUT
= 5V
C
OUT
2.2μF
On
Off
C
FLY1
C
FLY2
220nF
220nF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1322A-BTTT | Adj., 315mA, 1.2 MHz, Boost; Package Type: TSOT23-6; Miscellaneous: Operation; Miscellaneous: with Automatic Powersave |
| AS1322B-BTTT | Adj., 315mA, 1.2 MHz, Boost; Package Type: TSOT23-6; Miscellaneous: with Continuous Switching |
| AS1323-BTTT-27 | 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 2.7V |
| AS1323-BTTT-30 | 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 3.0V |
| AS1323-BTTT-33 | 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 3.3V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1302-EB | 制造商:ams 功能描述:AS1302 Evaluation Board |
| AS1302-WL_EK_ST | 功能描述:AS1302 - DC/DC, Step Up 1, Non-Isolated Outputs Evaluation Board 制造商:ams 系列:- 零件狀態(tài):有效 主要用途:DC/DC，步升 輸出和類型:1，非隔離 功率 - 輸出:- 電壓 - 輸出:5V 電流 - 輸出:30mA 電壓 - 輸入:2.9 V ~ 5.15 V 穩(wěn)壓器拓?fù)?升壓 頻率 - 開(kāi)關(guān):1.2MHz 板類型:完全填充 所含物品:板 使用的 IC/零件:AS1302 標(biāo)準(zhǔn)包裝:1 |
| AS130-73 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPST RF Reflective Switch |
| AS130-73LF | 制造商:SKYWORKS 制造商全稱:SKYWORKS 功能描述:GaAs SPST High-Isolation Switch 300 kHz-2.5 GHz |
| AS1308-02 | 功能描述:揚(yáng)聲器與變頻器 8 OHM 800-5KHz RoHS:否 制造商:PUI Audio 產(chǎn)品:Speakers 類型:Electromagnetic 頻率:900 Hz to 12 kHz 聲壓級(jí):88 dBA 阻抗:8 Ohms 功率額定值:1.2 W 形狀:Round 端接類型:Solder Pad 直徑:15 mm 長(zhǎng)度: 寬度: 深度:4.4 mm 磁體材料:Neodymium Iron Boran (NdFeB) 圓錐體材料:Mylar |
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