ADP3309 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP3309
Manufacturer

ADI
ChipWorker Part#

CW389416000
Description

anyCAP 100mA Low Dropout Linear Regulator
Documentation

Datasheet

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ADP3309 Specifications

Attribute	Attribute Value

Part Number	ADP3309
Manufacturer	ADI
ChipWorker Part#	CW389416000
Documentation	Datasheet
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Product Lifecycle Status	Unknown

Product Description

Product Details
The ADP3309 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. It is pin-for-pin and functionally compatible with National’s LP2981, but offers performance advantages. The ADP3309 stands out from conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 μF output capacitor for stability. This device is stable with any type of capacitor regardless of its equivalent series resistance (ESR) value, including ceramic types for space restricted applications. The ADP3309 achieves ±1.2% accuracy at room temperature and ±2.2% overall accuracy over temperature, line, and load regulations. The dropout voltage of the ADP3309 is only 120 mV (typical) at 100 mA. This device also includes a current limit and a shutdown feature. In shutdown mode, the ground current is reduced to ~1 μA.
The ADP3309 operates with a wide input voltage range from 2.8 V to 12 V and delivers a load current in excess of 100 mA. The ADP3309 anyCAP LDO offers a wide range of output voltages.
**Applications**
Cellular telephones
Notebook, palmtop computers
Battery-powered systems
PCMCIA regulator
Bar code scanners
Camcorders, cameras
### Features and Benefits
±1.2% accuracy over line and load regulations @ 25°C
Ultralow dropout voltage: 120 mV typical @ 100 mA
Requires only COUT = 0.47 μF for stability
anyCAP LDOs are stable with all types of capacitors (including MLCC)
Current and thermal limiting
Low noise
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Low shutdown current: 1 μA
2.8 V to 12 V supply range
−20°C to +85°C ambient temperature range
Several fixed voltage options
Ultrasmall 5-lead SOT-23 package
Excellent line and load regulations
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