ADMOS AMS3102S-5.0, AMS3102S-4.0, AMS3102S-3.5, AMS3102S-3.3, AMS3102S-3.0 Datasheet

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

Advanced AMS3102
Monolithic 300mA LOW DROPOUT VOLTAGE REGULATOR
Systems

FEATURES APPLICATIONS

•• Fixed and Adjustable Versions Available •• Cellular Telephones

•• Output Current in excess of 300mA •• Portable Consumer Equipment

•• Very Low Quiescent Current •• Portable (Notebook) Computers

•• Reverse Battery Protection •• Battery Powered Systems

•• Input-output Differential less than 0.6V •• Portable Instrumentation

•• Short Circuit Protection •• Radio Control Systems

•• Internal Thermal Overload Protection •• CD/DVD drives

•• Load Dump Protection

•• Overvoltage Protection

•• Mirror Image Insertion Protection

•• ON/OFF Pin

••External PNP Drive

GENERAL DESCRIPTION

The AMS3102 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered
systems. These devices feature very low quiescent current of 0.3mA or less when supplying 10mA loads. This unique
characteristic and the extremely low input-output differential required for proper regulation (0.25V for output currents of
100mA) make the AMS3102 ideal to use for standby power systems.

Internal circuitry of AMS3102 is protected from input fault conditions caused by reverse battery installation or input voltages
that exceed maximum rated input voltage. During line transients, such as load dump (40V) when the input voltage to the
regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to
protect both internal circuits and the load. The AMS3102 series also includes internal current limiting, thermal shutdown,
and is able to withstand temporary power-up with mirror-image insertion.

The AMS3102 is offered in the 3-pin TO-92 package, SOT-89, 3 lead SOT-23, 5 lead SOT-23 and 8 lead SOIC packages.
The device is provided with On/Off pin in SOT-23 5L and in 8 lead SOIC package.

ORDERING INFORMATION

OUTPUT PACKAGE TYPE TEMP.

VOLTAGE

TO-92 SOT-89 3L SOT-23 5L SOT-23 SO-8

RANGE

FIXED AMS3102AN-X AMS3102AL-X (R) AMS3102AM-X AMS3102AM1-X AMS3102AS-X IND

AMS3102N-X AMS3102L-X (R) AMS3102M-X AMS3102M1-X AMS3102S-X IND

ADJ. AMS3102CM1 AMS3102CS IND
X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V.
R = Reverse pin-out option

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

AMS3102

ABSOLUTE MAXIMUM RATINGS (Note 1)

Input Voltage Maximum Junction Temperature

+125°C

Operating 21V Storage Temperature

-65°C to +150°C

Overvoltage Protection 24V to 40V Lead Temperature (Soldering 10 sec)

230°C

Internal Power Dissipation (Note 4) Internally Limited ESD 2000V

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at V

IN =VO

+1V, IO =10mA, TJ=25°C, C2 = 22µF unless otherwise specified.

PARAMETER CONDITIONS

AMS3102A-X

Min. Typ. Max.

AMS3102-X

Min. Typ. Max.

Units

Fixed Output Voltage Versions

Output Voltage Tolerance -1.0 +1.0 -3.0 +3.0 %

(VIN+1V) ≤VIN ≤21V, IO=100 mA

-40°C ≤T

J

≤125°C

- 3.0 + 3.0

±± 5.0

%

Line Regulation

(VIN+1V) ≤VIN ≤ 15V
9V ≤VIN ≤ 21V

5
8

10
30

5
8

10
30

mV
mV

Load Regulation

5mA ≤I

O

≤ 100 mA

5mA ≤10 ≤ 200 mA

30
50

50
70

30
50

50
70

mV
mV

Dropout Voltage I

O

= 100 mA

I

O

= 200 mA

0.25

0.5

0.3

0.6

0.3

0.5

0.4

0.6

mV
mV

Quiescent Current

I

O

≤ 10 mA,

I

O

= 100 mA

I

O

≤ 200 mA (Note 5)

0.3
3
9

0.5
4

12

0.3
3
9

0.5
4

12

mA
mA
mA

Output Noise Voltage

10Hz-100kHz, C

OUT

= 100µF

500 500

µV rms

Output Impedance 100mADC and 10mA

rms

,100Hz=10kHz 200 200

mΩ

Ripple Rejection fO =120Hz 55 80 80 dB
Maximum Operational Input

Voltage

21 22 21 22 V

Maximum Line Transient

RL = 500Ω, VO ≤ 5.5V
T = 1ms, τ ≤100ms

35 40 35 40 V

Reverse Polarity Input Voltage,
D/C

-35 -40 -35 -40 V

Reverse Polarity Input Voltage,
Transient

RL = 500Ω, T = 1ms, τ ≤100ms

-35 -40 -35 -40 V

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

AMS3102

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at V

IN

=6V, V

OUT

=3V IO =10mA, TJ=25°C, R1 =27k, C2 = 2µF unless otherwise specified.

PARAMETER CONDITIONS

(Note 2)

Min.

AMS3102C

Typ.

Max.

Units

Adjustable Version

Reference Voltage

1.210 1.235 1.26 V

IO ≤ 100 mA, -40°C ≤T

J

≤ 125°C, R1=27k,

Measured from V

OUT

to Adjust Pin

1.20 1.235 1.270

V

Output Voltage Range 2 20 V
Line Regulation

V

OUT

+ 1V ≤VIN ≤ 21V

.02 1.5 mV/V

Load Regulation

5mA ≤IO ≤ 100 mA
5mA ≤IO ≤ 200 mA

0.3
1

1
2

%
%

Dropout Voltage

I

O

≤ 10 mA

I

O

= 100 mA

I

O

= 200 mA (Note 5)

0.05

0.3

0.5

0.2

0.4

0.6

V
V
V

Quiescent Current I

O

= 10 mA

I

O

= 100 mA

During Shutdown RL = 500Ω

0.3
3

0.3

0.5
4

0.5

mA
mA
mA

Output Noise Voltage 10Hz-100kHz 100

µV

rms

/V

Output Impedance 100mADC and 10mA

rms

,100Hz=10kHz 40 200

mΩ

Long Term Stability T =1000hr 0.4 %/1000hr
Ripple Rejection fO = 120Hz 0.02 dB
Maximum Operational Input

Voltage

21 22 V

Maximum Line Transient

IO = 10mA, Reference Voltage ≤ 1.5V
T = 1ms, τ ≤100ms

35 40 V

Reverse Polarity Input Voltage,
D/C

RL = 500Ω, VO ≥ -0.3V

-35 -40 V

Reverse Polarity Input Voltage,
Transient

RL = 500Ω, T = 1ms, τ ≤100ms

-35 -40 V

On/Off Threshold Voltage
On
Off

VO = 3V

2.5

1.8

2.0

1.5 V

V

On/Off Threshold Current V

OFF

= 2.4V 35 60

µA

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see
the Electrical Characteristics tables.

Note 2: To ensure constant junction temperature, low duty cycle pulse testing is used.
Note 3: Limits appearing in boldface type apply over the entire junction temperature range for operation. Limits appearing in normal type apply for

TA = TJ = 25°C.
Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-to ambient thermal resistance θ

J-A

and

the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is calculated using:

A-J

AJ T-(MAX)T

P(MAX)θ=

Where the value of the junction-to-ambient thermal resistance are as follows: 195°C/W for the TO-92 (N) package, 110°C/W for SOT-89 (L), 220°C/W for 5 lead
SOT-23 (M1) and 160°C/W for the molded plastic SO-8 (S).

Note 5: Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential.