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Advanced Monolithic Systems
FEATURES
* Fixed and Adjustable Versions Available * Output Current up to 500mA * Very Low Quiescent Current * Reverse Battery Protection * Input-output Differential less than 0.6V * Short Circuit Protection * Internal Thermal Overload Protection * Load Dump Protection * Overvoltage Protection * Mirror Image Insertion Protection * ON/OFF Pin
AMS3107
500mA LOW DROPOUT VOLTAGE REGULATOR
RoHS compliant
APPLICATIONS
* Cellular Telephones * Portable Consumer Equipment * Portable (Notebook) Computers * Battery Powered Systems * Portable Instrumentation * Radio Control Systems * CD/DVD drives * Automotive
GENERAL DESCRIPTION
The AMS3107 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 0.8mA or less when supplying 50mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output currents of 100mA) make the AMS3107 ideal to use for standby power systems. Internal circuitry of AMS3107 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 AMS3107 series also includes internal current limiting, thermal shutdown, and is able to withstand temporary power-up with mirror-image insertion. The AMS3107 is offered in 3 lead TO-92, 8 lead SOIC, SOT-89, SOT-223 and TO-252 packages.
ORDERING INFORMATION
OUTPUT VOLTAGE FIXED 3L TO-92 AMS3107CN-X AMS3107N-X SOT-89 AMS3107CL-X AMS3107L-X PACKAGE TYPE TO-252 AMS3107CD-X AMS3107D-X SOT-223 AMS3107C-X AMS3107-X SO-8 AMS3107CS-X AMS3107S-X AMS3107S TEMP. RANGE IND IND IND
ADJ. X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V.
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage Operating Overvoltage Protection Internal Power Dissipation (Note 4) 25V 26V to 40V Internally Limited Maximum Junction Temperature +125C Storage Temperature -65C to +150C Lead Temperature (Soldering 25 sec) 265C ESD 2000V
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at VIN =6.3V, IO =5mA, TJ=25C, C2 = 22F unless otherwise specified. PARAMETER
Fixed Output Voltage Versions Output Voltage Tolerance 6.3V V 25V, IO=100 mA
IN
CONDITIONS Min.
-1.0 - 3.0
AMS3107C-X Typ. Max.
+1.0 + 3.0 3 5 5 10 15 20 0.15 0.30 0.40 0.55 0.18 2 5 12 50 10 10 10 10 15 20 30 0.20 0.40 0.45 0.70 0.25 2.5 8
Min.
-3.0
AMS3107-X Typ. Max.
+3.0 5.0 5 5 5 15 20 20 0.25 0.40 0.45 0.55 0.2 2 5 12 50 10 80 10 15 15 20 25 30 0.30 0.50 0.55 0.70 0.3 3 8
Units
% % mV mV mV mV mV mV mV mV mV mV mA mA mA mA V rms F dB V V V V
Line Regulation
6V V 15V
IN
15V V 25V
IN
Load Regulation
5mA I 100 mA
O
5mA 10 200 mA 5mA 10 350 mA 5mA 10 500 mA Dropout Voltage I = 100 mA
O O O O O O O O
I = 200 mA I = 350 mA I = 500 mA Quiescent Current I 10 mA, I = 100 mA I 200 mA I = 350 mA Output Noise Voltage Output Bypass Capacitor Ripple Rejection Maximum Operational Input Voltage Maximum Line Transient Reverse Polarity Input Voltage, D/C Reverse Polarity Input Voltage, Transient RL = 500, T = 1ms, 100ms RL = 500, VO 5.5V T = 1ms, 100ms -35 -35 10Hz-100kHz, COUT = 100F ESR=0.1 to 10 fO =120Hz 55 25 35
80 28 40 -40 -40 25 35 -35 -35
28 40 -40 -40
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at VIN =6V, VOUT =3V IO =5mA, TJ=25C, R1 =27k, C2 = 2F unless otherwise specified. PARAMETER
Adjustable Version Reference Voltage IO 100 mA, -40C T 125C,
J
CONDITIONS
(Note 2)
Min.
1.210
AMS3107 Typ.
1.235 1.235
Units Max.
1.26 1.270 24 V V V mV/V % % % % V V V V mA mA mA mA Vrms/V F %/1000hr dB V V
R1=27k, Measured from VOUT to Adj. Pin Output Voltage Range Line Regulation Load Regulation 6V V 25V
IN
1.20 2
.02 0.3 0.5 1.0 1.0 0.05 0.3 0.5 0.5 0.18 2.0 5.0 12 100 10 0.4 0.02 21 22 40
1.5 0.5 1 1.5 2.0 0.2 0.4 0.6 0.7 0.3 2.5 8.0
5mA I 100 mA
O
5mA 10 200 mA 5mA 10 350 mA 5mA 10 500 mA Dropout Voltage I = 100 mA
O O O O O O O O
I = 200 mA I = 350 mA I = 500 mA Quiescent Current I = 0 mA, I = 100 mA I = 200 mA I = 350 mA Output Noise Voltage Output Bypass Capacitor Long Term Stability Ripple Rejection Maximum Operational Input Voltage Maximum Line Transient Reverse Polarity Input Voltage, D/C Reverse Polarity Input Voltage, Transient On/Off Threshold Voltage On Off On/Off Threshold Current VOFF = 2.4V 2.5 IO = 10mA, Reference Voltage 1.5V T = 1ms, 100ms RL = 500, VO -0.3V RL = 500, T = 1ms, 100ms VO = 3V -35 -35 10Hz-100kHz ESR=0.1 to 10 T =1000hr fO = 120Hz
35
-40 -40
V V
1.8 2.0 35
1.5
V V
60
A
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 = 25C. Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-to ambient thermal resistance J-A and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is calculated using:
P(MAX) =
TJ(MAX) - TA
J - A
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
Where the value of the junction-to-ambient thermal resistance are as follows: 195C/W for TO-92 (N), 160C/W for the SO-8 (S), 110C/W for SOT-89 (L), 90C/W for SOT-223 and 80C/W for TO-252.
AMS3107
PIN CONNECTIONS
TO-92 Plastic Package (N)
OUTPUT INPUT
SOT-89 (L)
SOT-223
GND
INPUT
1
2 GND
3 OUTPUT
INPUT
1
2 GND
3 OUTPUT
Bottom View
Top View
Top View
TO-252 (D)
TAB IS GND 3 2 1 OUTPUT INPUT
8L SOIC SO-Package (S)
OUTPUT 1 GROUND 2 GROUND 3 8 7 6 INPUT GROUND GROUND
ADJ/ N/C 4
5 ON/OFF
Top View
Top View
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage INPUT OUTPUT DIFFERENTIAL (V) INPUT OUTPUT DIFFERENTIAL (V) 0.6 0.5 0.4 0.3 0.2 0.1 0 0 80 120 40 JUNCTION TEMPERATURE ( C)
IO = 350mA IO = 200mA IO = 150mA IO = 100mA
Dropout Voltage 0.6 OUTPUT VOLTAGE (V) 0.5 0.4 0.3 0.2 0.1 0 0 100 200 300 400 500 OUTPUT CURRENT (mA) 600 6.0 5.0 4.0 3.0 2.0 0
Low Voltage Behavior
AMS3107-3.3 IO = 500mA
2.0
3.0 4.0 5.0 6.0 INPUT VOLTAGE (V)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Low Voltage Behavior 6.0 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5.0 4.0 3.0 2.0 0 2.0 3.0 4.0 5.0 6.0 INPUT VOLTAGE (V)
AMS3107-5.0 IO = 500mA
Output at Voltage Extremes 6 5 4 3 2 1 0 -1 -20 -10 0 10 20 30 40 50 60 INPUT VOLTAGE (V)
AMS3107-3.3 RL=500m
Output at Voltage Extremes 6
AMS3107-5.0
5 OUTPUT VOLTAGE (V) 4 3 2 1 0
RL=500m
-1 -20 -10
0 10 20 30 40 50 60 INPUT VOLTAGE (V)
Output Impedance 10 OUTPUT IMPEDANCE () OUTPUT CURRENT (mA)
IO = 10mA
Peak Output Current 1200 RIPPLE REJECTION (dB) 1000 800 600 400 200 0 0 20 10 INPUT VOLTAGE (V) 30 85 80 75 70 65 60 55 50 45 1
Ripple Rejection
C2 = 22F TANTALUM
1
TJ= 25C
C2 = 100F ALUM
0.1
IO= 10mA
0.01
1
10
100 1k 10k 100k FREQUENCY (Hz)
1M
10
100 1k 10k 100k 1M FREQUENCY (Hz)
Quiescent Current 17.5 QUIESCENT CURRENT (A) 15 12.5 10 7.5 5.0 2.5 0 -2.5 0 1 2345 678 INPUT VOLTAGE (V) 9 10
IO= 10mA
Quiescent Current 25 QUIESCENT CURRENT (mA) QUIESCENT CURRENT (mA) 10 8 6 4 2 0 0 50 100 150 200 250 300 350 OUTPUT CURRENT (mA)
VIN = 6V
Quiescent Current
20 15
IO = 200mA
10 3 2 1
~ ~
IO = 100mA IO = 50mA IO = 0mA
~ ~
0 -40
40 80 120 0 TEMPERATURE ( C)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Operation During Load Dump 70 60 50 40 30 =150 ms 20 10 0 ~ CO= 100F 5~ RL= 500 4 3 2 1 0 100 200 300 400 -100 0 TIME (ms) Reference Voltage 1.30 REFERENCE VOLTAGE (V) 1.28 1.26 1.24 1.22 1.20 1.18 1.16 1.14 1.12 1.10 0 3 6 9 12 15 18 21 24 OUTPUT VOLTAGE (V)
AMS3107 ADJUSTABLE
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
~ ~
500
APPLICATION NOTES
Definition of Terms Most type of tantalum or electrolytic capacitor can be used in the applications. A critical characteristic of the capacitors is an ESR value of 5 or less and a resonant frequency above 500kHz. The value of this capacitor can be increased without limits. For higher loads, the value of the capacitor should be increased, specialy when the output voltage is set for 2.5V or less. The AMS3107 lowest fixed output voltage value is 2.0V.
Dropout Voltage: The input-output voltage differential at which
the circuit stops to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100mV from the nominal voltage obtained at 1V input, dropout voltage is dependent upon load current and junction temperature. Input Voltage: The DC voltage applied to the input terminal with respect to ground. Input-Output Differential: The voltage difference between the unregulated input voltage and the regulated output voltage for which the regulator will regulate. Line Regulation: The change in output voltage for a change in the input voltage. The line regulation is measured under conditions of low dissipation or by using low duty cycle pulse testing such that the average chip temperature is not significantly affected. Load Regulation: The change in output voltage for a change in load current at constant chip temperature. Long term stability: Output voltage stability under accelerated life-test conditions after 1000 hours with maximum rated voltage and junction temperature. Output Noise Voltage: The rms AC voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Quiescent Current: That part of the positive input current that does not contribute to the positive load current. The regulator ground lead current. Ripple Rejection: The ratio of the peak-to -peak input ripple voltage to the peak-to-peak output ripple voltage at specified frequency. Temperature Stability of VO: The percentage change in output voltage for a thermal variation from room temperature to either temperature extreme. External capacitor The AMS3107 series require an output capacitor of 10F or greater to ensure device stability. Without the capacitor the device may oscillate.
Typical application circuit (adjustable output)
VIN
100k OUT OFF ON/OFF 10F ON GND AMS3107 ADJUSTABLE ADJ R2 R1 28k + C1 22F VOUT
Minimum Load In circuits using the fixed output voltage versions, minimum load is not required. For circuits using the adjustable device, the value of R1 and R2 should be chosen such, that a current of approximately 40A flows through the network. The reference voltage (1.235V) is measured between the adjust pin and VOUT. The output voltage can be set by the two resistors R1 and R2 using the following equation:
R1 + R2 VO = VREF R1
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
The value of R1 is recommended to be between 25k to 30 k, and the value of R2 will set the output voltage.
AMS3107
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3L TO-92 PLASTIC PACKAGE (N)
0.0600.005 (1.5240.127) DIA
0.1800.005 (4.5720.127) 0.0600.010 (1.5240.254) 0.1400.010 (3.5560.127)
0.1800.005 (4.5720.127)
0.90 (2.286) NOM
5 NOM 0.500 (12.70) MIN
10 NOM
0.050 (1.270) MAX
UNCONTROLLED LEAD DIMENSIONS
0.0500.005 (1.2700.127)
0.0160.003 (0.4060.076)
0.0150.002 (0.3810.051)
N (TO-92 ) AMS DRW# 042391
8 LEAD SOIC PLASTIC PACKAGE (S)
0.189-0.197* (4.801-5.004) 8 7 6 5
0.228-0.244 (5.791-6.197)
0.150-0.157** (3.810-3.988)
1
2
3
4
0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.008-0.010 (0.203-0.254)
0.010-0.020 x 45 (0.254-0.508) 0-8 TYP
0.014-0.019 (0.355-0.483)
0.050 (1.270) TYP
0.016-0.050 (0.406-1.270)
S (SO-8 ) AMS DRW# 042293
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
SOT-89 PLASTIC PACKAGE (L)
0.173-0.181 (4.40-4.60) 0.064-0.072 (1.62-1.83)
0.055-0.063 (1.40-1.60) 0.014-0.017 (0.35-0.44)
0.155-0.167 (3.94-4.25) 0.090-0.102 (2.29-2.60) 0.084-0.090 (2.13-2.29)
0.035-0.047 (0.89-1.20) 0.059 (1.50) BSC 0.118 (3.00) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56)
L (SOT-89 ) AMS DRW# 042392
3 LEAD SOT-223 PLASTIC PACKAGE
0.248-0.264 (6.30-6.71) 0.116-0.124 (2.95-3.15)
0.264-0.287 (6.71-7.29) 0.130-0.146 (3.30-3.71)
0.090 (2.29) NOM
0.033-0.041 (0.84-1.04)
10-16 0.071 (1.80) MAX 10 MAX 0.010-0.014 (0.25-0.36) 10-16 0.025-0.033 (0.64-0.84) 0.181 (4.60) NOM 0.012 (0.31) MIN 0.025-0.033 (0.64-0.84)
(SOT-223 ) AMS DRW# 042292
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3107
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
TO-252 PLASTIC PACKAGE (D)
0.020-0.030 (0.508-0.762)
0.258-0.262 (6.553-6.654) 0.208-0.212 (5.283-5.384)
0.020-0.030 (0.508-0.762) 0.033-0.037 (0.838-0.939)
0.085-0.095 (2.159-2.413)
0.030-0.034 (0.762-0.863) 0.038-0.042 (0.965-1.066)
0.023-0.027 (0.584-0.685) 0.175-0.180 (4.191-4.445)
7.0 45.0 0.057-0.067 (0.144-0.170) DIA 0.038 (0.965) TYP
0.235-0.245 (5.969-6.223)
0.025 (0.635) TYP 0.088-0.092 (2.235-2.336)
0.099-0.103 (2.514-2.615) 0.030 (0.762) TYP
0.038-0.042 (0.965-1.066) 0.0240.002 (0.6100.0508)
0.018-0.022 (0.451-0.558)
D (D3) AMS DRW# 042891
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723

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