Diodes Incorporated

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150MA RF ULDO Regulator

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The AP2202 is a 150mA ULDO regulator which provides very low noise, ultra low dropout voltage (typically 165mV at 150mA), very low standby current (1μA maximum) and excellent power supply ripple rejection (PSRR 75dB at 100Hz) in battery powered applications, such as handsets and PDAs and in noise sensitive applications, such as RF electronics. The AP2202 also features logic compatible enable/ shutdown control inputs, a low power shutdown mode for extended battery life, over current protection, over temperature protection, as well as reversed-battery protection. The AP2202 has adjustable, 2.5V, 2.6V, 2.8V, 3.0V and 3.3V versions. The AP2202 is available in space saving SOT-23-5 and SOT-89 packages.


· Up to 150mA Output Current · Low Standby Current · Low Dropout Voltage: VDROP=165mV at 150mA · High Output Accuracy: ± 1% · Good Ripple Rejection Ability: 75dB at 100Hz and IOUT=100μA · Tight Load and Line Regulation · Low Temperature Coefficient · Over Current Protection · Thermal Protection · Reverse-Battery Protection · Logic-Control°C Enable


· Cellular Phones · Cordless Phones · Digital Still Cameras · Wireless Communicators · PDAs / Palmtops · PC Mother Board · Consumer Electronics

Product Specifications

Product Parameters

Iq (max) (µA) 150
Iq (typ) (µA) 95
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Type LDO
Output options Adjustable & Fixed
Iout (A) 0.15
Vin (Max) (V) 13.2
Vin (Min) (V) 2.5
Vout (min) 1.25
Vout (max) 6
Fixed Vout (V) 2.5, 2.6, 2.8, 3.0, 3.3
Adjustable VFB (V) 1.25
Accuracy 25C 1
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.35
PSRR (dB) 1kHz 60
Operating Temperature (Ambient) (°C) -40 to 85
Enable Active Yes (High)
Channels 1
Output Discharge No
Power Good No
Reverse Protection Rerverse Current
VCTL Function No

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2527 2021-06-09 2021-09-09 Additional Wafer Source (GFAB, JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Additional Assembly/Test
(A/T) Site (CAT)
PCN-2331 2018-03-22 2018-06-22 Additional Qualified BOM (Bill of Materials) on Selected Devices