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High Accuracy anyCAP™ Adjustable 200 mA Low Dropout Linear Regulator ADP3303A
FUNCTIONAL BLOCK DIAGRAM
ADP3303A
OUT C...
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High Accuracy anyCAP™ Adjustable 200 mA Low Dropout Linear
Regulator ADP3303A
FUNCTIONAL BLOCK DIAGRAM
ADP3303A
OUT CC FB Q2 SD BANDGAP REF DRIVER gm IN THERMAL PROTECTION Q1
FEATURES High Accuracy Over Line and Load: ؎ 0.8% @ +25؇C, ؎1.4% Over Temperature Ultralow Dropout Voltage: 150 mV Typical @ 200 mA Requires Only CO = 1 F for Stability anyCAP = Stable with All Types of Capacitors (Including MLCC) Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 A 3.2 V to 12 V Supply Range Adjustable 2.2 V to 10 V Output Range –20؇ C to +85؇ C Ambient Temperature Range Thermally Enhanced TSSOP-14 Package APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems Portable Instruments Post
Regulator for Switching Supplies Bar Code Scanners
ERR
GND
ERR
EOUT R3 330k⍀ VOUT = +5V R1 C2 1F
ADP3303A
VIN C1 0.47F SD ON OFF SD IN OUT
FB GND R2
Figure 1. Typical Application Circuit
GENERAL DESCRIPTION
The ADP3303A is a member of the ADP330x family of precision low dropout anyCAP voltage
regulators. The ADP3303A stands out from conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design requires only a 1 µF output capacitor for stability. This device is insensitive to output capacitor ESR (Equivalent Series Resistance), and is stable with any good quality capacitor, including ceramic types (MLCC) for space restricted applications. The ADP3303A achieves exceptional accuracy of ± 0.8...