AP2121 BCDSEMI [BCD Semiconductor Manufacturing Limited], AP2121 Datasheet

AP2121

Manufacturer Part Number

AP2121

Description

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

Manufacturer

BCDSEMI [BCD Semiconductor Manufacturing Limited]

Datasheet

1.AP2121.pdf (2 pages)

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Applications

Description

The AP2121 series are positive voltage regulator ICs fab-

The AZ70XX series ICs are under voltage detectors with

ricated by CMOS process. Each of these ICs consists of a

a built in voltage threshold and low power consumption.

voltage reference, an error amplifier, a resistor network

The AZ70XX are specifically designed to accurately

for setting output voltage, a current limit circuit for cur-

monitor power supplies.

rent protection and a chip enable circuit (5-pin products

only).

The AZ70XX use a precision on-chip voltage reference

and a comparator to measure the input operating voltage.

The AP2121 series feature high ripple rejection, low drop-

These ICs can accurately reset the system after detecting

out voltage, low noise, high output voltage accuracy, and

voltage at the time of switching power on and instanta-

low current consumption which make them ideal for use

neous power off in various CPU systems and other logic

in various battery-powered devices.

systems. The detect voltage thresholds are 2.3V/2.5V/

2.7V/2.9V/3.1V/3.3V/4.2V/4.5V for AZ7023/25/27/29/

The AP2121 series have 1.5V, 1.8V, 2.5V, 2.8V, 3.0V,

31/33/42/45 respectively. Built in hysteresis helps to pre-

3.2V and 3.3V versions.

vent erratic operation in the presence of noise.

The AP2121 are available in standard SOT-23-3 and SOT-

Features

23-5 packages.

Features

Applications

Pin Configuration

Jun. 2007

Jul. 2007

VOLTAGE DETECTOR

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

Mobile Phones, Cordless Phones

Wireless Communication Equipment

Portable Games

Cameras, Video Recorders

Sub-board Power Supplies for Telecom Equipment

Battery Powered Equipment

Low Current Consumption:

Low Dropout Voltage at I

Low Minimum Operating Voltage for Output Reset-

cal (Except 1.5V Version)

ting: 0.8V Typical

Low Quiescent Current: 25µA Typical

Built in Hysteresis Voltage: 50mV Typical

High Ripple Rejection: 70dB Typical （f=1kHz）

Open Collector Output

Maximum Output Current: More Than 150mA

Extended Temperature Range: -40 to 85

(300mA Limit)

Extremely Low Noise: 30µVrms (10Hz to 100kHz)

Excellent Line Regulation: 4mV Typical

Excellent Load Regulation: 12mV Typical

Excellent Line Transient Response and Load Tran-

Low Battery Voltage Detector

sient Response

Power Fail Indicator

Processor Reset Generator

Battery Backup Control

Home Electric Appliances

CCL

CCH

=300

=30

µA

Typical

TO-92

OUT

GND

OUT

=100mA: 150mV Typi-

TO-92 Ammo Packing

OUT

GND

Benefits

Additional Available Materials

Parametric Table

Additional Available Materials

(mV)

(Min) (

(Max) (

Quiescent Current (Typ) (µA)

PSRR (dB)

Accuracy (%)

Load Regulation (Typ) (mV)

Line Regulation (Typ) (mV)

On/Off Pin

Error Flag

Operating Junction Temperature

Supply Voltage (Max) (V)

Supply Current (Max)(µA)

Detect Voltage (Typ)

Detect Voltage Temperature

Coefficient (%/

"H" Transmission Delay Time (µs)

Operating Temperature (Min) (

Operating Temperature (Max) (

OUT

DROP

OUT

Equivalent Characteristics to the Products from

Worldwide First-class Vendors

Very Competitive Price

Easier to Use

Very Competitive Price

Samples

Data Sheet

Reliability Report

ESD Report

Samples

Data Sheet

Reliability Report

ESD Report

(Max) (V)

(Min) (mA)

(V)

at I

BCD Semiconductor Manufacturing Limited

)

OUT

=100mA (Typ)

)

SOT-89-3

GND OUT

)

1.5V Version)

2.8, 3.0, 3.2, 3.3

150

150 (Except

1.5, 1.8, 2.5,

± 2

Yes

-40

Product Brief

2.3, 2.5, 2.7,

2.9, 3.1, 3.3,

AZ70XX

4.2, 4.5

AP2121

±0.01

500

-40

Related parts for AP2121

AP2121 Summary of contents

Page 1

... The detect voltage thresholds are 2.3V/2.5V/ 2.7V/2.9V/3.1V/3.3V/4.2V/4.5V for AZ7023/25/27/29/ The AP2121 series have 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 31/33/42/45 respectively. Built in hysteresis helps to pre- 3.2V and 3.3V versions. vent erratic operation in the presence of noise. The AP2121 are available in standard SOT-23-3 and SOT- Features 23-5 packages. · Low Current Consumption: Features µA ...

Page 2

... EF6 AP2121N-3.2TRE1 EF7 Samples AP2121N-3.3TRE1 EF8 Data Sheet AP2121AK-1.5TRE1 E1Z Reliability Report AP2121AK-1.8TRE1 E1U ESD Report AP2121AK-2.5TRE1 E1V AP2121AK-2.8TRE1 E1W AP2121AK-3.0TRE1 E1X AP2121AK-3.2TRE1 E3Z AP2121AK-3.3TRE1 E1Y SOT-89 GND OUT CC BCD Semiconductor Manufacturing Limited ...

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