LP5910 300-mA low-noise low-IQ low-dropout (LDO) linear regulator | TI.com

LP5910
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300-mA low-noise low-IQ low-dropout (LDO) linear regulator

300-mA low-noise low-IQ low-dropout (LDO) linear regulator - LP5910
Datasheet
 

Recommended alternative parts

  • TPS7A10  -  300-mA, low-IQ, fixed-output LDO regulator that supports lower input/output voltages & provides ultra-low dropout

Sample availability

DRV and YKA packages are fully released. Production samples are available.  Order now

YCP package is in preview. Preproduction samples are available (PLP5910-1.2PYCPR).  Order now

Description

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.

Features

  • 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

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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

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order 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 Order now 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 Order now 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 Order now 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)