AKM AME8750BEEY1825Y Low-dropout 150ma / 150ma dual cmos regulator Datasheet

AME, Inc.
AME8750
Low-Dropout
150mA / 150mA Dual CMOS Regulator
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.
n Functional Block Diagram
ON/OFF
Control
EN1
Current
Limit
Error
Amp1
VOUT1
VR1
Each
Circuit
R11
R12
VI N
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.
n Features
GND
Error
Amp2
V OUT2
VR2
Each
Circuit
ON/OFF
Control
EN2
R21
Voltage
Reference
R22
n Typical Applications
l Very Low Dropout Voltage
Fixed Version
l Guaranteed 150mA / 150mA Each Output
l Accurate to Within 1.5% For Both Outputs
Current
Limit
VIN
VIN
VOUT1
V OUT1
EN
l Typical 70 µA Quiescent Current
AME8750A
VOUT2
l Over-Temperature Shutdown
BYP
V OUT2
GND
l Current Limiting
l Short Circuit Current Fold-back
1µF
l Noise Reduction Bypass Cap
1µF
10nF
1µF
l Power-Saving Shutdwon Mode
l All AME's Lead Free Product Meet RoHS
Standards
n Applications
VIN
VIN
V OUT1
VOUT1
EN1
l Cellular Phones
AME8750B
l Palm / Notebook
EN2
V OUT2
VOUT2
GND
l Battery Power Equipment
l Handheld Instruments
1µF
1µF
1µF
1
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Pin Configuration
SOT-26
Top View
6
5
SOT-26
Top View
4
AME8750
1
2
AME 8750AEEY
5
4
AME 8750BEEY
1. VOUT2
1. VOUT2
2. GND
2. GND
3. BYP
3
6
AME8750
3. EN1
4. EN
4. EN2
5. VIN
5. VIN
6. VOUT1
1
* Die Attach:
Conductive Epoxy
2
3
6. VOUT1
* Die Attach:
Conductive Epoxy
n Pin Description
Pin Number
2
Pin Name
Description
AME8750A
AME8750B
1
1
VOUT2
2
2
GND
3
N/A
BYP
Reference Noise Bypass. Bypass with a low leakage 10nF
ceramic capacitor for reduced nise at both outputs.
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.
N/A
3
EN1
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.
4
N/A
EN
Shutdown Input. A logic low shuts down both regulators.
Connect to VIN for normal operation.
N/A
4
EN2
5
5
VIN
6
6
VOUT1
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.
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
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
Pin
Configuration
A
(SOT-26)
B
(SOT-26)
1. VOUT2
2. GND
3. BYP
4. EN
5. VIN
6. VOUT1
Operating Ambient
Temperature Range
E: -40OC to +85OC
Package
Type
E: SOT-2X
Number
of
Pins
Y: 6
Output
Voltage
(Both LDOs)
Special Feature
1825: VOUT1=1.8V Y: Lead free & Low profile
VOUT2=2.5V Z: Lead free
1828: VOUT1=1.8V
VOUT2=2.8V
1. VOUT2
2. GND
3. EN2
4. EN1
5. VIN
6. VOUT1
3
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Ordering Information
Part Number
Marking*
AME8750AEEY1828Z
BCKww
AME8750AEEY1828Y
BCKww
AME8750BEEY1828Z
BCJww
AME8750BEEY1828Y
BCJww
AME8750BEEY1825Z
BBHww
AME8750BEEY1825Y
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
Operating Ambient
Temperature Range
SOT-26
- 40oC to + 85oC
TSOT-26
- 40oC to + 85oC
SOT-26
- 40oC to + 85oC
TSOT-26
- 40oC to + 85oC
SOT-26
- 40oC to + 85oC
TSOT-26
- 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.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Absolute Maximum Ratings
Parameter
Maximum
Unit
6
V
Output Current
PD /2V IN-(V OUT1+V OUT2)
mA
Output Voltage
GND-0.3 to VIN +0.3
V
Input Voltage
ESD Classification
B*
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B: 2000V~3999V
n Recommended Operating Conditions
Parameter
Symbol
Rating
Unit
Ambient Temperature Range
TA
-40 to +85
o
Junction Temperature Range
TJ
-40 to +125
o
C
C
n Thermal Information
Parameter
Package
Die Attach
Thermal Resistance*
(Junction to Case)
Symbol
Maximum
θJC
81
Unit
o
C/W
Thermal Resistance
(Junction to Ambient)
SOT-26
Conductive Epoxy
Internal Power Dissipation
θJA
260
PD
400
mW
Maximum Junction Temperature
150
o
Solder Iron (10 Sec)**
350
o
C
C
* Measure θJC on center of molding compound if IC has no tab.
** MIL-STD-202G 210F
5
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Electrical Specifications
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
Symbol
Test Condition
Min
Typ
Max
Units
5.5
V
160
µA
IN
Input Supply Voltage
V IN
Quiescent Current
Note1
IQ
70
OUT1, OUT2
IOUT=1mA
Output Voltage
VO
0mA<IOUT<=150mA
V OUT+1V<V IN <5.5V
Line Regulation
REGL I N E
Load Regulation
REGLOAD
-1.5
TJ =-40 oC to +125oC
-2
TJ =25oC
-0.2
V OUT+1V<V IN <5.5V,
o
1.5
V OUT
2
0.2
o
IOUT=1mA
TJ =-40 C to +125 C -0.25
1mA<I OUT
TJ =-40 oC to +125oC -0.005 +0.0025 0.005
0.25
%
%/V
%/mA
IOUT1=IOUT2 =150mA
(V O=V O(NOM)-2%),
Dropout Voltage
V DROP
VO(NOM) <2.5V
IOUT1=IOUT2 =150mA
350
mV
300
mV
TJ =-40 oC to +125oC
(V O=V O(NOM)-2%),
V O(NOM)>=2.5V
Current Limit
ILIM
Short Circuit Current
ISC
Ripple Rejection
PSRR
Output Voltage Noise
en
180
600
200
350
mA
f=100H Z , C BYP=10nF, IOUT=1mA
55
f=1kHZ , C BYP=10nF, IOUT=1mA
55
f=10kHZ , C BYP=10nF, IOUT=1mA
48
f=1kHz to 100kHz
CB Y P=10nF, C OUT=1µF
550
µV RMS
f=1kHz to 100kHz
CB Y P=10nF, C OUT=1µF
5.5
µV/ √ HZ
dB
EN1, EN2
Enable Input Threshold
EN Input Bias Current
Shutdown Current
V EH
V IN=2.4V to 5.5V
VEL
V IN=2.4V to 5.5V
IEL
IEH
ISHDN
TJ =-40 oC to +125oC
EN=0V
V IN =5.0V
2.4
V
0.4
0.5
1
V IN =5.0V, EN1=EN2=0V
0.3
1
CB Y P=10nF
1.25
ms
EN=5V
-1
V
µA
BYP
Start-Up Rise Time
Over Temperature Protection
Over Temperature Shutdown
OTS
150
o
C
Over Temperature Hysteresis
OTH
20
o
C
Note1: VIN(min) =Higher VOUT+ V Dropout
6
AME, Inc.
AME8750
Low-Dropout
150mA / 150mA Dual CMOS Regulator
n Detailed Description
The AME8750 is low-dropout, low quiescent-current linear regulatior designed primarily for battery-powered applications. These parts are available with preset output voltage ranging from 1.8V to 3.3V, and the parts can supply
loads up 150mA.
Shutdown
AME8750A
The AME8750A has a single shutdown control input(EN).
Drive EN low to shut down both outputs, reducing supply
current to 0.3µA. Connect EN to a logic-high, or IN, for normal operation.
AME8750B
n Application Information
Capacitor Selection and Regulator Stability
Use a 1µF capacitor on the AME8750A/ AME8750B
input and a 1µF capacitor on the outputs. Larger input
capacitor values and lower ESRs provide better
supplynoise rejection and line transient response.
PSRR and Operation from Sources Other
than Batteries
The AME8750A/AME8750B are designed to deliver
low dopout voltages and low quiescent currents in
batterypowered systems. Power-supply rejection is
54dB at low frequencies.
(See the PSRR vs. Frequency graph)
The AME8750B has independent shutdown control inputs (EN1 and EN2). Drive EN1 low to shutdown V OUT1. Drive
EN2 low to shut down V OUT2. Drive both EN1 and EN2 low to
shut down the entire chip, reducing supply current to 0.3mA.
Connect both EN1 and EN2 to a logic-high, or IN, for normal operation.
Internal P-Channel Pass Transistor
The AME8750A/AME8750B feature two 1Ω P-Channel
MOSFET pass transistors. A P-Channel MOSEFT provides
several advantages over similar designs using PNP pass
transistors, including longer battery life. It requires no base
drive, which reduces quiescent current significantly. The
AME8750A/AME8750B only consume 70µA of quiescent
current whether in dropout, light-load, or heavy-load applications.
Current Limit
The AME8750A/8750B contain two independent current
limiters, one for each regulator, which monitor and control
the pass transistor’ s gate voltage, limiting the guaranteed
maximum output current to 150mA minimum. The output
can be shorted to ground for an indefinite time without damaging the part.
Thermal-Overload Protection
Thermal -overload protection limits toatl power dissipation in the AME8750A/AME8750B. When the junction
trmperature exceeds TJ=150oC, the themal sensor signals
the shutdown logic, turning off the pass transistor and allowing the IC to cool.
7
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
Quiescent Current vs Input Voltage
Dropout Voltage vs Load Current
140
300
O
V OUT =2.5V
85 C
100
O
55 C
O
80
25 C
60
-5 C
O
O
-45 C
40
Dropout Voltage (mV)
Quiescent Current (uA)
O
125 C
120
20
0
85℃
125℃
200
150
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
25℃
-45℃
100
6
0
50
Supply Current vs. Load current
Dropout Voltage @ 150mA (mV)
Supply Current (µA)
80
Both Output Loaded
60
50
40
30
20
10
0
20
40
60
80
100
120
140
160
350
300
250
200
150
100
50
0
1.5
Quiescent Current vs Temperature
2.5
3
3.5
Output Voltage vs Temperature
110
1.82
VOUT =1.8V
100
Output Voltage (V)
Quiescent Current @ 5V (µA)
2
Output Voltage (V)
Load Current (mA)
90
80
70
1.81
1.80
1.79
1.78
60
50
-50
1.77
0
50
100
o
Temperature ( C)
8
150
Dropout Voltage vs Output Voltage
90
0
100
Load Current (mA)
Input Voltage (V)
70
-5℃
50
0
0
55℃
250
-50
0
50
Temperature (oC)
100
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
PSRR vs. Frequency
Line Transient
60
Bypass
50
3.5V 4.5V
1V/DIV
VIN
30
VIN=2.9V
VOUT =1.8V
ILOAD=50mA
10
0
10
100
1000
10000
100000
20mV/DIV
(AC-Coupled)
20
Vout
PSRR (dB)
No-Bypass
40
1000000
50µs/DIV
Frequency (Hz)
Channel-to-Channel Isolation vs Frequency
Load Transient
Channel-to-Channel Isolation
(dB)
100
20mV/DIV
(AC-Coupled)
Vout
VI N=4.3V
ILOAD= 0 to 150mA
ILOAD
100mA/DIV
10
VIN=5V
RLOAD=50Ω
1
0
0.01
0.1
1
10
100
10µs/DIV
Frequency (KHz)
Output Noise Spectral Density
Load Transient Near Dropout
10
CBP=0.01µF
I OUT =1,50,100,150mA
100mA/DIV
VIN =VOUT+0.1V
0.1
1
10
Frequency(kHz)
20mV/DIV
(AC-Coupled)
VOUT
1
ILOAD
Noise(µV/√Hz)
CBP=0µF
IOUT=1,50,100,150mA
100
0
10µs/ DIV
9
AME, Inc.
AME8750
Low-Dropout
150mA / 150mA Dual CMOS Regulator
Shutdown Voltage
(1V/DIV)
Output Voltage
(1V/DIV)
Shutdown Response
10
0
0
RLOAD =100Ω
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Date Code Rule
Marking
Date Code
Year
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
n Tape & Reel Dimension
SOT-26
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-26
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
11
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Tape & Reel Dimension
TSOT-26
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
12
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-26
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
AME, Inc.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
AME8750
n Package Dimension
SOT-26
Top View
Side View
SYMBOLS
MILLIMETERS
MIN
L
D
e
1.20REF
E
H
A
θ1
0.0472REF
0.15
0.0000
0.0059
b
0.30
0.55
0.0118
0.0217
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
1.90 BSC
2.60
θ1
0.0748 BSC
3.00
0.37REF
L
A
MAX
0.00
H
Front View
MIN
A1
e
S1
MAX
INCHES
0
o
0.10236 0.11811
0.0146REF
10
o
0o
10o
0.95REF
0.0374REF
MILLIMETERS
INCHES
A1
S1
b
TSOT-26
Top View
Side View
SYMBOLS
MIN
MAX
MIN
MAX
A+A1
0.90
1.25
0.0354
0.0492
b
0.30
0.50
0.0118
0.0197
c
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
L
E
θ1
1.90 BSC
e
S1
H
2.40
A
θ1
S1
3.00
0.35BSC
L
Front View
0.07480 BSC
0
o
10
0.95BSC
0.09449 0.11811
0.0138BSC
o
0
o
10
o
0.0374BSC
A1
H
D
e
b
13
www.ame.com.tw
E-Mail: [email protected]
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
 AME, Inc. , February 2006
Document: 2075-DS8750-C.01
Corporate Headquarter
U.S.A. (Subsidiary)
AME, Inc.
Analog Microelectronics, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
3100 De La Cruz Blvd., Suite 201
Santa Clara, CA. 95054-2046
Tel : (408) 988-2388
Fax: (408) 988-2489
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