AME, Inc.
AME8750
n General Description
The AME8750 dual, low dropout, linear regulators operate from Higher V OUT+VDROPOUT to 5.5V input and deliver up to 150mA / 150mA output current each. It has a bypass pin option allows users to decouple the bandgap reference for reducing the output noise. Low dropout voltage and low quiescent current(70µA typ.)make them ideal for battery applications. The AME8750 is available with a wide variety of voltage options as standard and can be trimmed to 1.5% accuracy. For protection purpose, AME8750 has both thermal shutdown and current fold-back to prevent device failure under the “ worst” of operating conditions.
Low-Dropout 150mA / 150mA Dual CMOS Regulator
n Functional Block Diagram
EN1
ON/OFF Control
Error Amp1
Current Limit
VOUT1 R11
VR1 Each Circuit
R12 VI N
GND
Error Amp2
Current Limit
VR2 Each Circuit Voltage Reference
V OUT2 R21
EN2
ON/OFF Control
R22
n Features
l Very Low Dropout Voltage l Guaranteed 150mA / 150mA Each Output l Accurate to Within 1.5% For Both Outputs l Typical 70 µA Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back l Noise Reduction Bypass Cap l Power-Saving Shutdwon Mode l All AME's Lead Free Product Meet RoHS Standards
n Typical Applications
Fixed Version
VIN
VIN EN V OUT1
VOUT1
AME8750A
VOUT2 BYP GND V OUT2
1µF
10nF
1µF
1µ F
n Applications
l Cellular Phones l Palm / Notebook l Battery Power Equipment l Handheld Instruments
VIN
VIN EN1
VOUT1
V OUT1
AME8750B
EN2 GND V OUT2 VOUT2
1µF
1µF
1µ F
1
AME, Inc.
AME8750
n Pin Configuration
SOT-26 Top View
6 5 4
Low-Dropout 150mA / 150mA Dual CMOS Regulator
SOT-26 Top View AME 8750AEEY 1. VOUT2 2. GND
6 5 4
AME 8750BEEY 1. VOUT2 2. GND
AME8750
3. BYP 4. EN 5. VIN
AME8750
3. EN1 4. EN2 5. VIN
1
2
3
6. VOUT1 * Die Attach: Conductive Epoxy
1
2
3
6. VOUT1 * Die Attach: Conductive Epoxy
n Pin Description
Pin Number AME8750A
1
Pin Name
Description
Regulator 2 Output. Sources up to 150mA continuous current. Bypass with a 1µF (< 0.5Ω typ ESR) capacitor to GND. Ground. This pin also functions as heatsink. Solder to a large pad or the circuit-board ground plane to maximize thermal dissipation. Reference Noise Bypass. Bypass with a low leakage 10nF ceramic capacitor for reduced nise at both outputs. Shutdown 1 Input. A logic low shuts down regulator 1. If EN1 and EN2 are both low, both regulators and the reference turn off. If either EN1 and EN2 is a logic high, the reference is on. Connect to VIN for normal operation. Shutdown Input. A logic low shuts down both regulators. Connect to VIN for normal operation. Shutdown 2 Input. A logic low shuts down regulator 2. If EN1 and EN2 are both low, both regulators and the reference turn off. If either EN1 and EN2 is a logic high, the reference is on. Connect to VIN for normal operation. Regulator Input. Supply voltage can range from Higher VOUT+VDROPOUT to 5.5V. This input also supplies the onchip reference. Bypass with 1µF to GND. Regulator 1 Output. Sources up to 150mA continuous current. Bypass with a 1µF (< 0.5Ω typ ESR) capacitor to GND.
AME8750B
1 VOUT2
2
2
GND
3
N/A
BYP
N/A
3
EN1
4
N/A
EN
N/A
4
EN2
5
5
VIN
6
2
6
VOUT1
AME, Inc.
AME8750 Low-Dropout 150mA / 150mA Dual CMOS Regulator
n Ordering Information (contd.) AME8750 x x x x xxxx x
Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Number of Pins Y: 6 Output Voltage (Both LDOs)
Pin Configuration A
(SOT-26)
Operating Ambient Temperature Range E: -40OC to +85OC
Package Type E: SOT-2X
Special Feature
1. VOUT2 2. GND 3. BYP 4. EN 5. VIN 6. VOUT1 1. VOUT2 2. GND 3. EN2 4. EN1 5. VIN 6. VOUT1
1825: VOUT1=1.8V Y: Lead free & Low profile VOUT2=2.5V Z: Lead free 1828: VOUT1=1.8V VOUT2=2.8V
B
(SOT-26)
3
AME, Inc.
AME8750
n Ordering Information
Part Number
AME8750AEEY1828Z AME8750AEEY1828Y AME8750BEEY1828Z AME8750BEEY1828Y AME8750BEEY1825Z AME8750BEEY1825Y
Low-Dropout 150mA / 150mA Dual CMOS Regulator
Marking*
BCKww BCKww BCJww BCJww BBHww BBHww
Output Voltage Package
VOUT1=1.8V VOUT2=2.8V VOUT1=1.8V VOUT2=2.8V VOUT1=1.8V VOUT2=2.8V VOUT1=1.8V VOUT2=2.8V VOUT1=1.8V VOUT2=2.5V VOUT1=1.8V VOUT2=2.5V SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26
Operating Ambient Temperature Range
- 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC
Note:ww represents date code and pls refer to Date Code Rule before Package Dimension. * A line on top of the first letter represents lead free plating such as BCKww. Please consult AME sales office or authorized Rep./Distributor for voltage accuracy and package type availability.
4
AME, Inc.
AME8750
n Absolute Maximum Ratings
Parameter
Input Voltage Output Current Output Voltage ESD Classification
Low-Dropout 150mA / 150mA Dual CMOS Regulator
Maximum
6 PD /2V IN-(V OUT1+V OUT2) GND-0.3 to VIN +0.3 B*
Unit
V mA V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. * HBM B: 2000V~3999V
n Recommended Operating Conditions
Parameter
Ambient Temperature Range Junction Temperature Range
Symbol
TA TJ
Rating
-40 to +85 -40 to +125
Unit
o
C C
o
n Thermal Information
Parameter
Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Maximum Junction Temperature Solder Iron (10 Sec)** * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F SOT-26 Conductive Epoxy
Package
Die Attach
Symbol
θJC
Maximum
81
Unit
o
C/W
θJA
260
PD
400 150 350
mW
o
C C
o
5
AME, Inc.
AME8750
n Electrical Specifications
Low-Dropout 150mA / 150mA Dual CMOS Regulator
Unless specified: TJ=25OC, VIN=Higher VOUT+1V, IOUT1=IOUT2=1mA, CIN=COUT=1.0µF, VEN1=VEN2=VIN Typical values are at TJ=25OC
Parameter IN Input Supply Voltage Quiescent Current OUT1, OUT2 IOUT=1mA Output Voltage VO 0mA
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