LP5912 500-mA low-noise low-IQ low-dropout (LDO) linear regulator | TI.com

LP5912
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500-mA low-noise low-IQ low-dropout (LDO) linear regulator

500-mA low-noise low-IQ low-dropout (LDO) linear regulator - LP5912
Datasheet
 

Recommended alternative parts

  • TPS7A11  -  500-mA, low-IQ LDO regulator that supports lower input/output voltages & provides ultra-low dropout
  • TPS7A90  -  500-mA, low-noise (4.7-µVrms) LDO regulator in a small package (2.5 mm by 2.5mm)
  • TPS745  -  500-mA adjustable output LDO regulator with wider VIN, lower IQ & lower dropout

Description

The LP5912 is low-noise LDO that can supply up to 500 mA of output current. Designed to meet the requirements of RF and analog circuits, the LP5912 device provides low noise, high PSRR, low quiescent current, and low line and load transient response. The LP5912 offers class-leading noise performance without a noise bypass capacitor and with the ability for remote output capacitance placement.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor (no separate noise bypass capacitor required).

This device is available with fixed output voltages from 0.8 V to 5.5 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

Features

  • Input Voltage Range: 1.6 V to 6.5 V
  • Output Voltage Range: 0.8 V to 5.5 V
  • Output Current up to 500 mA
  • Low Output-Voltage Noise: 12 µVRMS Typical
  • PSRR at 1 kHz: 75 dB Typical
  • Output Voltage Tolerance (VOUT ≥ 3.3 V): ±2%
  • Low IQ (Enabled, No Load): 30 µA Typical
  • Low Dropout (VOUT ≥ 3.3 V): 95 mV Typical at 500-mA Load
  • Stable With 1-µF Ceramic Input and Output Capacitors
  • Thermal-Overload and Short-Circuit Protection
  • Reverse Current Protection
  • No Noise Bypass Capacitor Required
  • Output Automatic Discharge for Fast Turnoff
  • Power-Good Output With 140-µs Typical Delay
  • Internal Soft-Start to Limit the In-rush Current
  • –40°C to +125°C Operating Junction Temperature Range

WEBENCH® Designer LP5912

  Min   Max Range
Vin  V 1.6 to 6.5V
Product Option
Vout  V
Iout  A ≤ 0.5A
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)
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)    
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)    
LP5910 Order now Fixed Output     0.3     3.3     1.3     1.8     0.9     0.9
1
1.1
1.2
1.8
1.825    
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)