Diodes AP2120 User Manual

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

General Description

The AP2120 series are positive voltage regulator ICs
fabricated by CMOS process. Each of these ICs con­sists of a voltage reference, an error amplifier, a resis­tor network for setting output voltage, a current limit
circuit for current protection.

The AP2120 series feature high supply voltage ripple
rejection, low dropout voltage, low noise, high output
voltage accuracy, and low current consumption which
make them ideal for use in various battery-powered
devices.

The AP2120 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V,

2.8V, 3.0V, 3.2V, 3.3V, 3.6V, 4.0V and 5.0V versions.

The AP2120 are available in standard SOT-23, SOT-89
and TO-92 packages.

Features

· Low Dropout Voltage at I

Typical (Except 1.2V, 1.3V and 1.5V Versions)

· Low Quiescent Current: 25μA Typical

· High Ripple Rejection: 65dB Typical （f=1kHz）

· Output Current: More Than 150mA (250mA

Limit)

· Extremely Low Noise: 15μVrm s@ V

1.3V, 1.5V (10Hz to 100kHz)

· Excellent Line Regulation: 4mV Typical

· Excellent Load Regulation: 12mV Typical

· High Output Voltage Accuracy: ±2%

· Excellent Line Transient Response and Load

Transient Response

· Compatible with Low ESR Ceramic Capacitor (as

Low as 1μF)

=100mA: 200mV

OUT

OUT

=1.2V,

Applications

· Mobile Phones, Cordless Phones

· Wireless Communication Equipment

· Portable Games

· Cameras, Video Recorders

· Sub-board Power Supplies for Telecom Equip-

ment

· Battery Powered Equipment

SOT-23

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

SOT-89

Figure 1. Package Types of AP2120

TO-92 (Bulk Packing)

1

TO-92 (Ammo Packing)

Data Sheet

3

2

1

3

2

1

1

2

3

1

2

3

123

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Pin Configuration

GND

N

V

V

N/NA Package

(SOT-23)

IN

OUT

Z Package

(TO-92 (Bulk Packing))

V

V

NA

GND

V

OUT

IN

IN

V

R Package

(SOT-89)

OUT

GND

Z Package

(TO-92 (Ammo Packing))

V

V

OUT

IN

V

V

IN

OUT

GND

Figure 2. Pin Configuration of AP2120 (Top View)

GND

Pin Description

Pin Number

SOT-23 (N) SOT-23 (NA) SOT-89/

TO-92

1 3 1 GND Ground

223V

312V

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

Pin Name Function

OUT

IN

Regulated Output Voltage

Input Voltage

2

Data Sheet

VREF

CURRENT LIMIT

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Functional Block Diagram

3(1){2}

V

IN

2(2){3}

1(3){1}

Figure 3. Functional Block Diagram of AP2120

V

OUT

GND

A(B){C}
A for SOT-23 (N)
B for SOT-23 (NA)
C for SOT-89/TO-92

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

3

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Ordering Information

AP2120 -

G1: Green

Circuit Type

TR: Tape and Reel or Ammo

Package

N/NA: SOT-23
R: SOT-89

Z: TO-92

Blank: Bulk

1.2: Fixed Output 1.2V

1.3: Fixed Output 1.3V

1.5: Fixed Output 1.5V

1.8: Fixed Output 1.8V

2.5: Fixed Output 2.5V

2.8: Fixed Output 2.8V

3.0: Fixed Output 3.0V

3.2: Fixed Output 3.2V

3.3: Fixed Output 3.3V

3.6: Fixed Output 3.6V

4.0: Fixed Output 4.0V

5.0: Fixed Output 5.0V

Package Temperature Range Output Voltage Part Number Marking ID Packing Type

1.2V(N) AP2120N-1.2TRG1 GR4 Tape & Reel

1.3V(N) AP2120N-1.3TRG1 GR5 Tape & Reel

1.5V(N) AP2120N-1.5TRG1 GR6 Tape & Reel

1.8V(N) AP2120N-1.8TRG1 GR7 Tape & Reel

2.5V(N) AP2120N-2.5TRG1 GR8 Tape & Reel

SOT-23

SOT-23

SOT-89

-40 to 85

-40 to 85

-40 to 85

o

C

o

C

o

C

2.8V(N) AP2120N-2.8TRG1 GR9 Tape & Reel

3.0V(N) AP2120N-3.0TRG1 GS2 Tape & Reel

3.2V(N) AP2120N-3.2TRG1 GS3 Tape & Reel

3.3V(N) AP2120N-3.3TRG1 GS4 Tape & Reel

3.6V(N) AP2120N-3.6TRG1 GZ8 Tape & Reel

4.0V(N) AP2120N-4.0TRG1 GZ9 Tape & Reel

5.0V(N) AP2120N-5.0TRG1 GS5 Tape & Reel

3.3V(NA) AP2120NA-3.3TRG1 GZ1 Tape & Reel

3.6V(NA) AP2120NA-3.6TRG1 GAA Tape & Reel

4.0V(NA) AP2120NA-4.0TRG1 GBA Tape & Reel

1.2V AP2120R-1.2TRG1 G13Q Tape & Reel

1.3V AP2120R-1.3TRG1 G17Q Tape & Reel

1.5V AP2120R-1.5TRG1 G22Q Tape & Reel

1.8V AP2120R-1.8TRG1 G27Q Tape & Reel

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

4

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Ordering Information (Continued)

Package Temperature Range Output Voltage Part Number Marking ID Packing Type

2.5V AP2120R-2.5TRG1 G28Q Tape & Reel

2.8V AP2120R-2.8TRG1 G31Q Tape & Reel

3.0V AP2120R-3.0TRG1 G33Q Tape & Reel

SOT-89

TO-92

-40 to 85

-40 to 85

o

C

o

C

3.2V AP2120R-3.2TRG1 G37Q Tape & Reel

3.3V AP2120R-3.3TRG1 G41Q Tape & Reel

3.6V AP2120R-3.6TRG1 G42Q Tape & Reel

4.0V AP2120R-4.0TRG1 G43Q Tape & Reel

5.0V AP2120R-5.0TRG1 G70Q Tape & Reel

1.2V AP2120Z-1.2G1 2120Z-1.2G1 Bulk

1.2V AP2120Z-1.2TRG1 2120Z-1.2G1 Ammo

1.3V AP2120Z-1.3G1 2120Z-1.3G1 Bulk

1.3V AP2120Z-1.3TRG1 2120Z-1.3G1 Ammo

1.5V AP2120Z-1.5G1 2120Z-1.5G1 Bulk

1.5V AP2120Z-1.5TRG1 2120Z-1.5G1 Ammo

1.8V AP2120Z-1.8G1 2120Z-1.8G1 Bulk

1.8V AP2120Z-1.8TRG1 2120Z-1.8G1 Ammo

2.5V AP2120Z-2.5G1 2120Z-2.5G1 Bulk

2.5V AP2120Z-2.5TRG1 2120Z-2.5G1 Ammo

2.8V AP2120Z-2.8G1 2120Z-2.8G1 Bulk

2.8V AP2120Z-2.8TRG1 2120Z-2.8G1 Ammo

3.0V AP2120Z-3.0G1 2120Z-3.0G1 Bulk

3.0V AP2120Z-3.0TRG1 2120Z-3.0G1 Ammo

3.2V AP2120Z-3.2G1 2120Z-3.2G1 Bulk

3.2V AP2120Z-3.2TRG1 2120Z-3.2G1 Ammo

3.3V AP2120Z-3.3G1 2120Z-3.3G1 Bulk

3.3V AP2120Z-3.3TRG1 2120Z-3.3G1 Ammo

3.6V AP2120Z-3.6G1 2120Z-3.6G1 Bulk

3.6V AP2120Z-3.6TRG1 2120Z-3.6G1 Ammo

4.0V AP2120Z-4.0G1 2120Z-4.0G1 Bulk

4.0V AP2120Z-4.0TRG1 2120Z-4.0G1 Ammo

5.0V AP2120Z-5.0G1 2120Z-5.0G1 Bulk

5.0V AP2120Z-5.0TRG1 2120Z-5.0G1 Ammo

BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green.

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

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Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Input Voltage V

Enable Input Voltage V

Output Current I

Junction Temperature T

Storage Temperature Range T

Lead Temperature (Soldering, 10sec) T

LEAD

IN

CE

OUT

J

STG

6.5 V

-0.3 to VIN+0.3 V

300 mA

150

-65 to 150

260

o

o

o

C

C

C

SOT-23 250

Thermal Resistance (Note 2)

θ

JA

SOT-89 165

o

C/W

TO-92 180

ESD (Human Body Model) ESD 2000 V

ESD (Machine Model) ESD 200 V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifica­tions do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a
function of the maximum junction temperature, T

perature, T

)/θ

T

A

The maximum allowable power dissipation at any ambient temperature is calculated using: P

A.

Exceeding the maximum allowable power dissipation will result in excessive die temperature.

JA.

the junction-to-ambient thermal resistance, θ

J(max),

and the ambient tem-

JA,

=(T

D(max)

J(max)

-

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Input Voltage V

Operating Junction Temperature Range T

IN

J

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

6

26 V

-40 85

o

C

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics
AP2120-1.2 Electrical Characteristics

(VIN=2.2V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

V

V

Dropout Voltage

OUT

=1μF,

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=2.2V

1mA≤I

IN

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=2.2V

OUT

≤80mA

1mA≤I

2.2V≤VIN≤6V

=30mA

I

OUT

I

=10mA 700 900

OUT

I

=100mA 700 900

OUT

=150mA 700 900

I

OUT

I

=200mA 700 900

OUT

85oC,

unless otherwise specified.)

1.176 1.2 1.224 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=2.2V, I

Ripple 0.5Vp-p, f=1kHz

=2.2V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC, I

OUT

OUT

=0mA

=0

25 50

μA

65 dB

±120

±100

15

μV/

ppm/

μVrm s

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

7

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-1.3 Electrical Characteristics

(VIN=2.3V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=2.3V

1mA≤I

IN

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=2.3V

OUT

≤80mA

1mA≤I

2.3V≤VIN≤6V

=30mA

I

OUT

I

=10mA 600 800

OUT

I

=100mA 600 800

OUT

=150mA 600 800

I

OUT

I

=200mA 600 800

OUT

85oC,

unless otherwise specified.)

1.274 1.3 1.326 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=2.3V, I

Ripple 0.5Vp-p, f=1kHz

=2.3V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC, I

OUT

OUT

=0mA

=0

25 50

μA

65 dB

±130

±100

15

μV/

ppm/

μVrms

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

8

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-1.5 Electrical Characteristics

(VIN=2.5V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

V

V

Dropout Voltage

OUT

=1μF,

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=2.5V

1mA≤I

IN

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=2.5V

OUT

≤80mA

1mA≤I

2.3V≤VIN≤6V

=30mA

I

OUT

I

=10mA 400 600

OUT

I

=100mA 400 600

OUT

=150mA 400 600

I

OUT

I

=200mA 400 600

OUT

85oC,

unless otherwise specified.)

1.47 1.5 1.53 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=2.5V, I

Ripple 0.5Vp-p, f=1kHz

=2.5V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC, I

OUT

OUT

=0mA

=0

25 50

μA

65 dB

±150

±100

15

μV/

ppm/

μVrm s

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

9

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-1.8 Electrical Characteristics

(VIN=2.8V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=2.8V

1mA≤I

IN

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=2.8V

OUT

≤80mA

1mA≤I

2.3V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

1.764 1.8 1.836 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=2.8V, I

Ripple 0.5Vp-p, f=1kHz

=2.8V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±180

±100

30

μV/

ppm/

μVrms

o

C

o

C

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

10

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-2.5 Electrical Characteristics

(VIN=3.5V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=3.5V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=3.5V

OUT

≤80mA

1mA≤I

3V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

2.45 2.5 2.55 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=3.5V, I

Ripple 0.5Vp-p, f=1kHz

=3.5V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±250

±100

30

μV/

ppm/

μVrm s

o

C

o

C

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

11

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-2.8 Electrical Characteristics

(VIN=3.8V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=3.8V

1mA≤I

IN

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=3.8V

OUT

≤80mA

1mA≤I

3.3V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

2.744 2.8 2.856 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=3.8V, I

Ripple 0.5Vp-p, f=1kHz

=3.8V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±280

±100

30

μV/

ppm/

μVrm s

o

C

o

C

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

12

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-3.0 Electrical Characteristics

(VIN=4V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

=1μF,

OUT

V

V

V

OUT

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=4V

1mA≤I

OUT

IN

VIN-V

=1V 150 mA

OUT

VIN=4V

1mA≤I

OUT

3.5V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

I

=150mA 300 500

OUT

≤30mA

≤80mA

85oC,

unless otherwise specified.)

2.94 3.0 3.06 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=4V, I

Ripple 0.5Vp-p, f=1kHz

=4V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

OUT

=0mA

25 50

μA

65 dB

±300

±100

30

μV/

ppm/

μVrms

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

13

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-3.2 Electrical Characteristics

(VIN=4.2V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=4.2V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=4.2V

OUT

≤ 80mA

1mA≤ I

3.7V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

3.136 3.2 3.264 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=4.2V, I

Ripple 0.5Vp-p, f=1kHz

=4.2V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±320

±100

30

μV/

ppm/

μVrms

o

C

o

C

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

14

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-3.3 Electrical Characteristics

(VIN=4.3V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=4.3V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=4.3V

OUT

≤ 80mA

1mA≤ I

3.8V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

3.234 3.3 3.366 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=4.3V, I

Ripple 0.5Vp-p, f=1kHz

=4.3V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±330

±100

30

μV/

ppm/

μVrms

o

C

o

C

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

15

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-3.6 Electrical Characteristics

(VIN=4.6V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=4.6V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=4.6V

OUT

≤ 80mA

1mA≤ I

4.6V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

I

=150mA 300 500

OUT

85oC,

unless otherwise specified.)

3.528 3.6 3.672 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=4.6V, I

Ripple 0.5Vp-p, f=1kHz

=4.6V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

OUT

=0mA

25 50

μA

65 dB

±330

±100

30

μV/

ppm/

μVrms

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

16

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-4.0 Electrical Characteristics

(VIN=5.0V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=5.0V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=5.0V

OUT

≤ 80mA

1mA≤ I

5V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

I

=100mA 200 300

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

3.92 4.0 4.08 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=5.0V, I

Ripple 0.5Vp-p, f=1kHz

=5.0V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

OUT

=0mA

25 50

μA

65 dB

±330

±100

30

μV/

ppm/

μVrm s

o

C

o

C

10Hz ≤f≤100kHz

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

17

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Electrical Characteristics (Continued)
AP2120-5.0 Electrical Characteristics

(VIN=6.0V, TJ=25oC, CIN=1μF, C

Parameter Symbol Conditions Min Typ Max Unit

Output Voltage

Input Voltage V

Output Current I

Load Regulation

Line Regulation

Dropout Voltage

OUT

V

V

=1μF,

V

OUT

IN

OUT

RLOAD

RLINE

V

DROP

Bold

typeface applies over -40oC≤TJ≤

VIN=6.0V

1mA≤I

VIN-V

≤30mA

OUT

=1V 150 mA

OUT

VIN=4.3V

OUT

≤ 80mA

1mA≤ I

5.5V≤VIN≤6V

=30mA

I

OUT

I

=10mA 20 40

OUT

=100mA 200 300

I

OUT

=150mA 300 500

I

OUT

85oC,

unless otherwise specified.)

4.9 5.0 5.1 V

12 40 mV

416mV

6V

mV

Quiescent Current

Power Supply
Rejection Ratio

(ΔV

ΔV

OUT/VOUT

Output Voltage
Temperature Coefficient

Short Current Limit I

RMS Output Noise

I

PSRR

OUT

LIMIT

V

NOISE

Q

VIN=6.0V, I

Ripple 0.5Vp-p, f=1kHz

=6.0V

V

IN

/ΔT

I

=30mA

)/ΔT

OUT

V

=0V 50 mA

OUT

TA=25oC

10Hz ≤f≤100kHz

OUT

=0mA

25 50

μA

65 dB

±330

±100

30

μV/

ppm/

μVrms

o

C

o

C

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

18

Data Sheet

0.00 0.05 0.10 0.15 0.20 0.25 0.30

0.0

0.5

1.0

1.5

2.0

2.5

Output Voltage (V)

Output Current (A)

AP2120-2.5

TC=-40oC

TC=25oC

TC=85oC

V

IN

=3.5V

-40-20 0 20406080100120

2.490

2.495

2.500

2.505

2.510

2.515

2.520

2.525

2.530

2.535

Output Voltage (V)

Case Temperature (oC)

AP2120-2.5

I

OUT

=10mA

I

OUT

=50mA

I

OUT

=100mA

I

OUT

=150mA

V

IN

=3.5V

0123456

0

5

10

15

20

25

30

35

Quiescent Current (μA)

Input Voltage (V)

AP2120-2.5

TC=-40oC

TC=25oC

TC=85oC

I

OUT

=0

0.00 0.05 0.10 0.15 0.20

25

30

35

40

45

50

55

Quiescent Current (μA)

Output Current (A)

AP2120-2.5

TC=-40oC

TC=25oC

TC=85oC

V

IN

=3.5V

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Typical Performance Characteristics

Figure 4. Output Voltage vs. Output Current

Figure 6. Quiescent Current vs. Input Voltage

Mar. 2013 Rev. 1. 4

Figure 5. Output Voltage vs. Case Temperature

Figure 7. Quiescent Current vs. Output Current

BCD Semiconductor Manufacturing Limited

19

Data Sheet

-40-20 0 20406080100120

10

15

20

25

30

35

40

45

50

Quiescent Current (μA)

Case Temperature (oC)

AP2120-2.5

VIN=3.5V

I

OUT

=0

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16

0

50

100

150

200

250

300

350

400

Dropout Voltage (V)

Output Current (A)

AP2120-2.5

TC=-40oC

TC=25oC

TC=85oC

-40 -20 0 20 40 60 80

0

50

100

150

200

250

300

350

400

450

Dropout Voltage (V)

Case Temperature (oC)

AP2120-2.5

I

OUT

=10mA

I

OUT

=80mA

I

OUT

=150mA

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Typical Performance Characteristics (Continued)

Figure 8. Quiescent Current vs. Case Temperature

Figure 10. Dropout Voltage vs. Case Temperature

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

Figure 9. Dropout Voltage vs. Output Current

150

100

50

(5 0m A/ Di v)

0

OUT

I

50

0

-50

(50mV/Div)

-100

OUT

V

Figure 11. Load Transient (I

OUT

AP2120-2.5

=0 to 150mA)

20

Data Sheet

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Typical Performance Characteristics (Continued)

2

1

( 1 V / D i v )

IN

V

0

50

(50mV/Div)

0

OUT

-50

V

Figure 12. Line Transient

(Condition:VIN=2.5V to 3.5,I

3.5

3.0

2.5

2.0

1.5

1.0

(0.5V/Div)

0.5

IN

V

0

Input Voltage

Output Voltage

AP2120-2.5

=10mA)

OUT

AP2120-2.5

3.0

2.5

2.0

1.5

1.0

0.5

0

(0.5V/Div)

OUT

V

=10mA

I

OUT

I

=150mA

OUT

Figure 13. PSRR vs. Frequency

AP2120-2.5

Figure 14. Start-up

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

21

Data Sheet

V

IN

AP2120-2.5

C

IN

1μF

C

OUT

1μF

V

OUT

V

IN

V

OUT

GND

VIN=3.5V

V

OUT

=2.5V

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Typical Application

Note: Filter capacitors are required at the AP2120's input and output. 1μF capacitor is required at the input. The
minimum output capacitance required for stability should be more than 1μF with ESR from 0.01Ω to 100Ω.
Ceramic capacitors are recommended.

Figure 15. Typical Application of AP2120

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

22

Data Sheet

2.300(0.091)

2.500(0.098)

1.200(0.047)

1.400(0.055)

0.890(0.035)

1.030(0.041)

0.300(0.012)

0.510(0.020)

1.900(0.075)REF

2.800(0.110)

3.000(0.118)

2.0°

3.0 °

0.500(0.020)

0.700(0.028)

1.050(0.041)REF

0.010(0.0004)

0.100(0.004)

0.900(0.035)

1.100(0.043)

4×

R0.100(0.004)

7.0°

7.0°

0.550(0.022)REF

0.200(0.008)MIN

0.100(0.004) GAUGE PLANE

0.080(0.003)

0.180(0.007)

R0.100(0.004)

0.0°~10.0°

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Mechanical Dimensions

SOT-23 Unit: mm(inch)

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

23

Data Sheet

45

1.030(0.041)REF

1.550(0.061)REF

4.400(0.173)

4.600(0.181)

0.900(0.035)

1.100(0.043)

3.950(0.156)

4.250(0.167)

3.000(0.118)
TYP

0.480(0.019)

2.300(0.091)

2.600(0.102)

0.320(0.013)

0.520(0.020)

3

10

2.060(0.081)REF

1.400(0.055)

1.600(0.063)

0.350(0.014)

0.450(0.018)

R0.150(0.006)

3

10

1.500(0.059)

0.320(0.013)REF

1.620(0.064)REF

2.210(0.087)REF

0.320(0.013)

0.520(0.020)

1.800(0.071)

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Mechanical Dimensions (Continued)

SOT-89

Unit: mm(inch)

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

24

Data Sheet

2.420(0.095)

2.660(0.105)

0.360(0.014)

0.760(0.030)

Φ

1.600(0.063)

MAX

12.500(0.492)

15.500(0.610)

1.270(0.050)
TYP

3.300(0.130)

3.700(0.146)

4.300(0.169)

4.700(0.185)

1.000(0.039)

1.400(0.055)

4.400(0.173)

4.800(0.189)

3.430(0.135)
MIN

0.320(0.013)

0.510(0.020)

0.000(0.000)

0.380(0.015)

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Mechanical Dimensions (Continued)

TO-92 (Bulk Packing)

Unit: mm(inch)

Mar. 2013 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

25

Data Sheet

4.300(0.169)

4.700(0.185)

1

2.500(0.492)14.500(0.571)

2.540(0. 100

)

Ty

p

1.270(0.050

)

Typ

0. (0. 015)

0.

550

(0.022

)

4.400(0. 173
)

4.

800

(

0.

189

)

3.430(0.135

)

MIN

0.320(0.013

)

0

. 510(0. 020)

0.000(0.000

)

0.380(0.015

)

MAX

1. 100(0. 043

1.400(0.055

)

3.300(0.130)

3.800(0.150)

Φ

1.600(0.063)

)

380

2.500(0. 098
)

4.000(0.157

)

13. 000(0.512
)

15.000(0.591

)

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2120

Mechanical Dimensions (Continued)

TO-92 (Ammo Packing)

Unit: mm(inch)

Mar. 2013 Rev. 1. 4 BCD Semiconductor Manufacturing Limited

26

BCD Semiconductor Manufacturing Limited

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BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi­cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

IMPORTANT NOTICE

IMPORTANT NOTICE

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BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

other rights nor the rights of others.

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

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