LP5910 LP5910 超低ノイズ、300mA リニア・レギュレータ、RF/アナログ回路用 | TIJ.co.jp

LP5910 (供給中) LP5910 超低ノイズ、300mA リニア・レギュレータ、RF/アナログ回路用

LP5910 超低ノイズ、300mA リニア・レギュレータ、RF/アナログ回路用 - LP5910
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概要

The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement.

The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage.

When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff.

With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor. A separate noise bypass capacitor is not required.

This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

特長

  • Input Voltage Range: 1.3 V to 3.3 V
  • Output Voltage Range: 0.8 V to 2.3 V
  • Output Current: 300 mA
  • PSRR: 75 dB at 1 kHz
  • Output Voltage Tolerance: ±2%
  • Low Dropout: 120 mV (Typical)
  • Very Low IQ (Enabled, No Load): 12 µA
  • Low Output-Voltage Noise: 12 µVRMS
  • Stable with Ceramic Input and Output Capacitors
  • Thermal Overload Protection
  • Short-Circuit Protection
  • Reverse Current Protection
  • Automatic Output Discharge for Fast Turnoff
  • Create a Custom Design Using the LP5910 With the WEBENCH® Power Designer

All trademarks are the property of their respective owners.

WEBENCH® Designer LP5910

  Min   Max Range
Vin  V 1.3 to 3.3V
Product Option
Vout  V
Iout  A ≤ 0.3A
Ambient Temp  °C -40.0 to 125.0°C

機能一覧

他の製品と比較 リニア・レギュレータ(LDO) メール Excelへダウンロード
Part number オーダー・オプション Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP5910 ご注文 Fixed Output     0.3     3.3     1.3     1.8     0.9     0.9
1
1.1
1.2
1.8    
DSBGA | 4
WSON | 6    
Enable
Output Discharge
Reverse Current Protection    
1     -40 to 125     79     12     0.14 | 1ku     Catalog     40     3     120     0.012     4DSBGA: 0 mm2: .7 x .7 (DSBGA | 4)
6WSON: 4 mm2: 2 x 2 (WSON | 6)    
LP5907 ご注文 Fixed Output     0.25     5.5     2.2     4.5     1.2     1.2
1.5
1.8
1.9
2.2
2.5
2.7
2.75
2.8
2.85
2.9
3
3.1
3.2
3.3
3.7
4
4.5    
DSBGA | 4
DSBGA | 4
DSBGA | 4
SOT-23 | 5
X2SON | 4    
Enable
Output Discharge    
1     -40 to 125     193     6.5     0.14 | 1ku     Catalog     60     2     50     0.012     4DSBGA: 0 mm2: .65 x .65 (DSBGA | 4)
4DSBGA: 0 mm2: .685 x .685 (DSBGA | 4)
4DSBGA: 1 mm2: .88 x .875 (DSBGA | 4)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)
4X2SON: 1 mm2: 1 x 1 (X2SON | 4)    
LP5912 ご注文 Fixed Output     0.5     6.5     1.6     3.3     0.9     0.9
1
1.1
1.2
1.5
1.8
2.5
2.8
3
3.3
5    
WSON | 6     Enable
Output Discharge
Power Good
Reverse Current Protection
Soft Start    
1     -40 to 125     71     12     0.40 | 1ku     Catalog     40     3     150     0.03     6WSON: 4 mm2: 2 x 2 (WSON | 6)