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1. Description
The TPS7A0512PDBVR is an ultra-small, low quiescent current low-dropout regulator (LDO) that can source 200 mA with excellent transient performance. This device has an output range of 0.8 V to 3.3 V with a typical 1% accuracy. The TPS7A0512PDBVR, with ultralow IQ (1 µA), consumes very-low quiescent current for extending battery life in battery-powered applications. The device can be operated from rechargeable Li-Ion batteries, Liprimary battery chemistries such as Li-SOCl2, LiMnO2, as well as two- or three-cell alkaline batteries. The TPS7A0512PDBVR is available with an active pulldown circuit to quickly discharge the output when disabled. The TPS7A0512PDBVR is fully specified for TJ = –40°C to +125°C operation, and is available in standard X2SON (DQN), SOT-23 (DBV and DBZ), and DSBGA (YKA) packages
2. Features
1. Ultralow IQ: 1 µA (typ), 3 µA (max)
– IGND: 6 µA (typ) at 200 mA
2. Excellent transient response
3. Packages:
– 1.0-mm × 1.0-mm X2SON (4)
– 0.65-mm × 0.65-mm DSBGA (4)
– SOT-23 (5)
– SOT-23 (3)
4. Input voltage range: 1.4 V to 5.5 V
5. Output accuracy: 1% typical, 3% maximum
6. Available in fixed-output voltage:
– 0.8 V to 3.3 V
7. Very low dropout:
– 235 mV (max) at 200 mA (3.3 VOUT)
8. Active output discharge
9. Foldback current limit
10. Stable with a 0.47-µF or larger capacitor
3. Applications
1. Wearable electronics
2. Ultrabooks, tablets, E-readers
3. Always-on power supplies
4. Set-top boxes
5. Gaming controllers, remote controls, toys, drones
6. Wireless handsets and smart phones
7. Portable and battery-powered equipment
