TPS7A03 200-nA nanopower IQ, 200-mA low-dropout (LDO) linear regulator with fast transient response | TI.com

TPS7A03 (PREVIEW) 200-nA nanopower IQ, 200-mA low-dropout (LDO) linear regulator with fast transient response

 

Sample availability

Preproduction samples are available (PTPS7A0318PDQNR, PTPS7A0330PDQNR and PTPS7A0333PDQNR). Order now

Description

The TPS7A03 is an ultra-small, ultra-low quiescent current low-dropout linear regulator (LDO) that can source 200 mA with excellent transient performance.

The TPS7A03, with an ultra-low IQ of 200 nA, is designed specifically for applications where very-low quiescent current is a critical parameter. This device maintains low IQ consumption even in dropout mode to further increase the battery life. When in shutdown or disabled mode, the device consumes ultra-low,
3-nA IQ that helps increase the shelf life of the battery. The TPS7A03 has an output range of 0.8 V to 5.0 V available in 50-mV steps to support the lower core voltages of modern microcontrollers (MCUs).

The TPS7A03 features a smart enable circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps minimize the external components used to pulldown the EN pin. This circuit also helps minimize the current drawn through the external pulldown circuit when the device is enabled.

The TPS7A03 is fully specified for TJ = –40°C to +125°C operation.

Features

  • Ultra-low IQ: 200 nA (typ), even in dropout
  • Shutdown IQ: 3 nA (typ)
  • Excellent transient response (1 mA to 50 mA)
    • < 10-µs settling time
    • 80-mv undershoot
  • Packages:
    • 1.0-mm × 1.0-mm X2SON
    • SOT23-5 (preview)
    • 0.65-mm x 0.65-mm DSBGA (preview)
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range: 0.8 V to 5.0 V (fixed)
  • Output accuracy: 1.5% over temperature
  • Smart enable pulldown
  • Very low dropout:
    • 205 mV (max) at 200 mA (VOUT = 3.3 V)
  • Stable with a 1-µF or larger capacitor

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Parametrics

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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)
TPS7A03 Order now Fixed Output     0.2     6     1.5     5     0.8     1
1.2
1.5
1.8
2
2.2
2.3
2.5
2.8
3
3.1
3.3
3.6    
X2SON | 4     Enable
Output Discharge    
1     -40 to 125     179.1     115     0.29 | 1ku     Catalog     60     1.5     204     0.0002     4X2SON: 1 mm2: 1 x 1 (X2SON | 4)    
TPS7A02 Order now Fixed Output     0.2     6     1.5     5     0.8     1
1.2
1.5
1.8
2
2.2
2.3
2.5
2.8
3
3.1
3.3
3.6    
X2SON | 4     Enable
Output Discharge    
1     -40 to 125     179.1     115     0.49 | 1ku     Catalog     60     1.5     204     0.000025     4X2SON: 1 mm2: 1 x 1 (X2SON | 4)    
TPS7A05 Order now Fixed Output     0.2     5.5     1.4     3.3     0.8     0.8
1
1.2
1.5
1.8
1.825
2
2.2
2.5
2.7
2.8
2.85
3
3.1
3.3    
DSBGA | 4
SOT-23 | 3
SOT-23 | 5
X2SON | 4    
Enable
Output Discharge
Foldback Overcurrent Protection    
1     -40 to 125     144.1     180     0.18 | 1ku     Catalog     15.4     2     204     0.001     4DSBGA: 0 mm2: .7 x .7 (DSBGA | 4)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)
3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)
4X2SON: 1 mm2: 1 x 1 (X2SON | 4)