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Details, datasheet, quote on part number:AAT3242ITP-PP-T1
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| Part: | AAT3242ITP-PP-T1 |
| Category: | Power Management => Regulators => Linear Regulators => LDO (Low Drop Out) |
| Description: | 300mA/150mA Dual CMOS LDO Linear Regulator<<<>>>the AAT3242 is a Dual Low Dropout Linear<<<>>>regulator With Power ok Outputs. Two Integrated<<<>>>regulators Provide a High Power 300mA Output And<<<>>>a Lower Power 150mA Output, Making This Device<<<>>>ideal For Use With Microprocessors And DSP Cores<<<>>>in Portable Products. Two Power ok (POK) Pins<<<>>>provide Open Drain Output Signals When Their<<<>>>respective Regulator Output is Within Regulation.<<<>>>the AAT3242 Has Independent Input Voltage And<<<>>>enable Pins For Increased Design Flexibility. This<<<>>>device Features a Very Low Quiescent Current<<<>>>(140µA Typical), And Low Dropout Voltages, Typically<<<>>>200mV And 400mV at The Full Output Current Level,<<<>>>making it Ideal For Portable Applications Where<<<>>>extended Battery Life is Critical. The AAT3242 Has<<<>>>complete Over-current/short-circuit And Over-temperature<<<>>>protection Circuits to Guard Against<<<>>>extreme Operating Conditions. |
| Company: | Anadigics, Inc. |
| Datasheet: | Download AAT3242ITP-PP-T1 datasheet File size : 230 kB |
| Request For quote: | Find where to buy AAT3242ITP-PP-T1
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Datasheet text preview:
300mA/150mA Dual CMOS LDO Linear Regulator General Description
The AAT3242 is a Dual Low Dropout Linear Regulator with Power OK outputs. Two integrated regulators provide a high power 300mA output and a lower power 150mA output, making this device ideal for use with microprocessors and DSP cores in portable products. Two Power OK (POK) pins provide open drain output signals when their respective regulator output is within regulation. The AAT3242 has independent input voltage and enable pins for increased design flexibility. This device features a very low quiescent current (140µA typical), and low dropout voltages, typically 200mV and 400mV at the full output current level, making it ideal for portable applications where extended battery life is critical. The AAT3242 has complete over-current/short-circuit and over-temperature protection circuits to guard against extreme operating conditions. The AAT3242 is available in a space saving 12 pin TSOPJW package. This device is capable of operation over a -40 to 85°C temperature range.
AAT3242
Features
· · · · · · · · · · · ·
PowerLinearTM
High/Low Current Outputs, 300mA/150mA Low Dropout · LDO A: 400mV at 300mA · LDO B: 200mV at 150mA High output voltage accuracy, ±1.5% High PSRR: 65dB at 1KHz 70µA Quiescent Current for each LDO Over-current/short-circuit protection Over-Temperature protection 2 Power OK (POK) outputs Independent power and enable inputs Uses low ESR ceramic capacitors Available in 12 pin TSOPJW Package -40 to 85°C Temperature Range
Applications
· · · · · · · Microprocessor/DSP Core/IO Power Cellular Phones Notebook Computers PDA's and Handheld Computers Digital Cameras Portable Communication Devices Handheld instruments
Typical Application
VIN INA OUTA OUTPUT A 100k POKA OUTPUT B 100k POKB Enable B ENB GND POKB 2.2µF 2.2µF
AAT3242
Enable A ENA POKA OUTB INB
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300mA/150mA Dual CMOS LDO Linear Regulator Pin Descriptions
Pin #
1
AAT3242
Symbol
ENA
Function
Enable Regulator A pin - this pin should not be left floating. When pulled low the PMOS pass transistor turns off and the device enters shutdown mode, consuming less than 1µA. Ground connection pins. Power OK pin with Open drain output. It is pulled low when the OUTA pin is below the 10% regulation window. Low Current (150mA) Regulator Output pin - should be decoupled with a 2.2µF or greater output low ESR ceramic capacitor. Input voltage pin for regulator B - should be decoupled with 1µF or greater capacitor. Enable Regulator B - this pin should not be left floating. When pulled low, the PMOS pass transistor turns off and the device enters shutdown mode, consuming less than 1µA. Power OK pin with Open drain output. It is pulled low when the OUTB pin is below the 10% regulation window. High current (300mA) Regulator Output Pin - should be decoupled with a 2.2µF or greater output low ESR ceramic capacitor. Input voltage pin for regulator A - should be decoupled with 1µF or greater capacitor.
2, 3, 8, 9 4 5 6 7
GND POKA OUTB INB ENB
10 11 12
POKB OUTA INA
Pin Configuration
TSOPJW-12 (Top View) ENA GND GND POKA OUTB INB INA OUTA POKB GND GND ENB
1 2 3 4 5 6
12 11 10 9 8 7
2
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300mA/150mA Dual CMOS LDO Linear Regulator Absolute Maximum Ratings1
Symbol
VIN IOUT 2 TJ TLEAD
AAT3242
Description
Input Voltage DC Output Current Operating Junction Temperature Range Maximum Soldering Temperature (at leads, 10 sec)
Value
6.0 PD/(VIN-VO) -40 to 150 300
Units
V mA °C °C
Notes: 1: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time. 2: Based on long-term current density limitation.
Thermal Information
Symbol
JA PD
Description
Thermal Resistance Maximum Power Dissipation (TA = 25°C)
1 2
Value
110 909
Units
°C/W mW
Note 1: Mounted on a FR4 board. Note 2: Derate 9.1mW/°C above 25°C.
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300mA/150mA Dual CMOS LDO Linear Regulator Electrical Characteristics1
VIN = VOUT(NOM) + 1.0 V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT 1.5 V. IOUT = 1.0mA, COUT = 2.2 µF, CIN = 1.0 µF, TA = -40 to 85°C unless otherwise noted. Typical values are TA = 25°C. Symbol
VOUT VIN VDO VOUT/ VOUT*VIN VOUT(Line) VOUT(Load) VEN(L) VEN(H) VPOK VPOKHYS VPOK(LO) IPOK IOUT ISC IQ ISD PSRR TSD THYS eN TC
AAT3242
Description
Output Voltage Tolerance Input Voltage Dropout Voltage 2,3 Line Regulation 4 Dynamic Line Regulation Dynamic Load Regulation Enable Threshold Low Enable Threshold High Power OK Trip Threshold Power OK Hysteresis Power OK Output Voltage Low POK Output Leakage Current Output Current Short Circuit Current Ground Current Shutdown Current Power Supply Rejection Ratio Over Temp Shutdown Threshold Over Temp Shutdown Hysteresis Output Noise Output Voltage Temp. Coeff.
Conditions
IOUT = 1mA to 300mA TA = 25°C TA = -40 to 85°C
Min
-1.5 -2.5 VOUT + VDO5
Typ Max
1.5 2.5 5.5 600 0.09
Units
% V mV %/V mV mV
LDO A; IOUT = 300 mA
IOUT = 300mA VIN = VOUT + 1 to 5.0 V IOUT = 300mA, VIN = VOUT + 1 to VOUT + 2, TR/TF = 2µS IOUT = 1mA to 300mA, TR <5µS 1.5 90
400
5.0 60 0.6
VOUT rising, TA = 25°C ISINK = 1mA VPOK 1.2V VOUT < 0.4V VIN =5V, no load; EN A = VIN VIN = 5V, EN A = 0V 1kHz IOUT =10mA 10kHz 1MHz
94 1.0
98 0.4 1.0
300 600 70 65 45 42 145 12 250 22 125 1.0
V V % of VOUT % of VOUT V µA mA mA µA µA dB °C °C µVRMS/Hz ppm/°C
eNBW = 300Hz to 50kHz
Notes: 1: The AAT3242 is guaranteed to meet performance specification over the -40 to +85°C operating temperature range, and are assured by design, characterization and correlation with statistical process controls. 2: VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 3: For VOUT <2.1V, VDO = 2.5 - VOUT 4: CIN = 10µF 5: To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN 2.5V.
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300mA/150mA Dual CMOS LDO Linear Regulator Electrical Characteristics1 (continued)
VIN = VOUT(NOM) + 1.0 V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT 1.5 V. IOUT = 1.0mA, COUT = 2.2 µF, CIN = 1.0 µF, TA = -40 to 85°C unless otherwise noted. Typical values are TA = 25°C. Symbol
VOUT VIN VDO VOUT/ VOUT*VIN VOUT(Line) VOUT(Load) VEN(L) VEN(H) VPOK VPOKHYS VPOK(LO) IPOK IOUT ISC IQ PSRR TSD THYS eN TC
AAT3242
Description
Output Voltage Tolerance Input Voltage Dropout Voltage 2,3 Line Regulation4 Dynamic Line Regulation Dynamic Load Regulation Enable Threshold Low Enable Threshold High Power OK Trip Threshold Power OK Hysteresis Power OK Output Voltage Low POK Output Leakage Current Output Current Short Circuit Current Ground Current Power Supply Rejection Ratio Over Temp Shutdown Threshold Over Temp Shutdown Hysteresis Output Noise Output Voltage Temp. Coeff.
Conditions
IOUT = 1mA to 150mA TA = 25°C TA = -40 to 85°C
Min
-1.5 -2.5 VOUT + VDO5
Typ Max
1.5 2.5 5.5 300 0.09
Units
% V mV %/V mV mV V V % of VOUT % of VOUT V µA mA mA µA dB °C °C µVRMS/Hz ppm/°C
LDO B; IOUT = 150 mA
IOUT = 150mA VIN = VOUT + 1 to 5.0 V IOUT = 150mA, VIN = VOUT + 1 to VOUT + 2, TR/TF = 2 µS IOUT = 1mA to 150mA, TR <5µS 1.5 90
200
5.0 60 0.6
VOUT rising, TA = 25°C ISINK = 1mA VPOK 1.2V VOUT < 0.4V VIN = 5V, no load; EN B = VIN 1 kHz IOUT = 10mA 10 kHz 1MHz
94 1.0
98 0.4 1.0
150 600 70 65 45 42 145 12 250 22 125
eNBW = 300Hz to 50kHz
Notes: 1: The AAT3242 is guaranteed to meet performance specification over the -40 to +85°C operating temperature range, and are assured by design, characterization and correlation with statistical process controls. 2: VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 3: For VOUT <2.3V, VDO = 2.5 - VOUT 4: CIN = 10µF 5: To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN 2.5V.
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