AME1300 [AME]
AME1300 300mA CMOS LDO with RESET Function; AME1300 300毫安CMOS LDO具有复位功能
| 型号： | AME1300 |
| 厂家： | 
ANALOG MICROELECTRONICS |
| 描述： | AME1300 300mA CMOS LDO with RESET Function |
| 文件： | 总11页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n General Description
n Applications
The AME1300 combines a Low Dropout Regulator and
a Microprocessor Reset Monitor in a space-saving 8-Pin
MSOP package. Total supply current is 50µA(typical),20
to 60 times lower than in bipolar regulators .
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cellular / GSM / CDMA Phones
l PC Peripherals
The AME1300 has an extremely precise output with a
typical accuracy of ±1.5%. Other key features include
l Battery Powered Widgets
ultra low noise operation, very low dropout voltage and
internal feed-forward compensation for fast response to
step changes in load. The AME1300 incorporates both
over-temperature and over-current protection. When the
shutdown control EN is low, the regulator output voltage
falls to zero,RESET output remains valid and supply cur-
rent is reduced to 10µA(typical). The AME1300 is stable
with an output capacitor of only 2.2µF and has a mini-
mum output current of 300 mA.
n Typical Applications
RESET
RESET
VDET
VDET
VDET and VOUT can be
connected together
VOUT
VOUT
GND
VIN
NC
VIN
An active low RESET is asserted when the detected
voltage ( VDET) falls below the reset voltage threshold.
The reset output remains low for 300msec(typical) after
VDET rises above reset threshold. The AME1300 also has
a fast wake up response time (10µsec typically) when
released from shutdown.
1300
SHUTDOWN
CONTROL
Bypass
EN
CBypass
(Option)
470pF
n Features
l LDO with intergrated Microprocessor Reset
Monitor Functionality
n Pin Configuration
l Guaranteed 300mA Output
l Accurate to within 1.5%
MSOP-8
Top View
1. RESET
2. VOUT
3. GND
4. Bypass
5. EN
8
7
6
5
l 50µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Noise Reduction Bypass Capacitor
1300
Xyww
6. NC
l Power-Saving Shutdown Mode
l Space-Saving MSOP Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
7. VIN
8. VDET
2
3
4
1
Note: X represents the regulator
output voltage. yww represents
the date code.
Please contact AME for details
1
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Ordering Information
AME1300 xEQA xxx
Voltage
270:
280:
285:
300:
V=2.7V
V=2.8V
V=2.85V
V=3.0V
Voltage Symbol
H:
C:
J:
2.7V
2.8V
2.85V
3.0V
B:
Part Number
Marking
Output Voltage Package Operating Temp. Range
1300
Hyww
- 40oC to + 85oC
- 40oC to + 85oC
- 40oC to + 85oC
- 40oC to + 85oC
AME1300HEQA270
2.7V
2.8V
MSOP-8
MSOP-8
MSOP-8
MSOP-8
1300
Cyww
AME1300CEQA280
AME1300JEQA285
AME1300BEQA300
1300
Jyww
2.85V
3.0V
1300
Byww
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type avail-
ability.
2
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Absolute Maximum Ratings
Parameter
Input Voltage
Maximum
Unit
V
7
Output Current
PD / (VIN - VO)
mA
Output Voltage
GND - 0.3 to VIN + 0.3
V
ESD Classification
B
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature
Rating
- 40 to + 85
- 40 to + 125
Unit
oC
oC
n Thermal Information
Parameter
Maximum
Unit
oC / W
Thermal Resistance (
Thermal Resistance (
)
MSOP-8
MSOP-8
39
θjc
oC / W
)
206
θja
oC
oC
Maximum Junction Temperature
150
300
Maximum Lead Temperature (10 Sec)
3
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Electrical Specifications
TA= 250C unless otherwise noted, VIN=VO(NOM)+1V, IO=1mA, VEN=VIN,
Test Condition
Parameter
Input Voltage
Symbol
VIN
Min Typ Max
Units
V
Note 1
-1.5
6
Output Voltage Accuracy
VO
IO=1mA
1.5
30
%
IO=0.1mA
IO=100mA
300mA
1
Dropout Voltage
VDROPOUT VO=VO(NOM) -2.0%
70
130
mV
210 390
Output Current
IO
ILIM
ISC
IQ
VO>1.2V
600
600
mA
mA
mA
Current Limit
VO>1.2V
VO=0V
800
Short Circuit Current
Quiescent Current
Ground Pin Current
300 600
IO=0mA
40
40
50
A
µ
IGND
IO=1mA to 300mA
A
µ
2.0V<= VO < 4.0V
4.0V <= Vo
-0.1 0.02 0.1
%
%
IO=1mA
VIN=VO+1 to VO+2
Line Regulation
REGLINE
-0.4
-1
0.2
0.2
150
30
0.4
1
Load Regulation
REGLOAD
OTS
IO=1mA to 300mA
%
oC
Over Temerature Shutdown
Over Temerature Hysterisis
VO Temperature Coefficient
oC
OTH
ppm/oC
TC
30
IO=100mA
Power Supply Rejection
Output Voltage Noise
EN Input Threshold
PSRR
eN
f=1kHz
50
30
dB
C =2.2 F
µ
O
f=10Hz to 100kHz
IO=10mA
Co=2.2 F
Vrms
µ
µ
VEH
VEL
IEH
VIN=5V
VIN=5V
EN=VIN, VIN=5V
2.0
0
Vin
0.4
0.5
0.1
10
V
V
V
A
µ
EN Input Bias Current
IEL
VEN=0V, VIN=5V
VIN=5V, VO=0V, VEN=0
IO=0.4mA, VEN=0
A
µ
Shutdown Supply Current
Shutdown Output Voltage
Note1:VIN(min)=VOUT+VDROPOUT
ISD
A
µ
VO,SD
0
0.4
V
4
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Electrical Specifications(contd.)
RESET Output
Test Condition
Parameter
VDET Range
Symbol
Min
Typ Max Units
VDET
TA=-40~85oC
1
5.5
2.63 2.67
2.68
V
TA=25oC
2.59
2.58
Reset Threshold
VTH
V
TA=-40~85oC
RESET Threshold Tempco
30
ppm
V
I
SINK=1.2mA,
RESETB Output Voltage Low
VOL
VOH
VDET<VTH min
VDET>VTH max
0.5
TA= -40~85oC
I
SOURCE=0.5mA,
TA= -40~85oC
RESETB Output Voltage High
0.8VDET
V
VDET= VTH - 100mV, TA= -40 ~ 85oC
TA= -40 ~ 85oC
VDET to Reset Delay
TD1
TD2
40
S
µ
Reset Active Timeout Period*
140
210 500
mS
5
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Detailed Description
The AME1300 is a combination of a fixed output, low
drop-out regulator and microprocessor monitor. Unlike
bipolar regulators, the AME1300 supply current does not
increase with load current. In addition,VOUT remains stable
andwithin regulation at very low load currents(an impor-
tant consideration in RTC and CMOS RAM battery back-
up applications) as well as with any type of capacitor
(see below). AME1300 pin functions are detailed below:
RESET
C1
RESET
VOUT
VDET
VDET
VIN
C1
1µF
2.2µF
+
1300
GND
NC
EN
Battery
Bypass
CBypass
(Option)
EN Control
(from Power
Control Logic)
470pF
n Pin Description
Pin #
Pin Name
Pin Description
RESET output remains low while VDET is below the reset voltage
threshold, and for 300msec VDET rises above reset theshold.
1
RESET
Regulated Voltage Output.
Ground Terminal.
2
3
4
VOUT
GND
Reference Bypass Input. Connecting a 1000pF to this input further
reduces output noise.
Bypass
Shutdown Control Input. The regulator is fully enabled when a logic
high is applied to this input. The regulator enters shutdown when a
logic low is applied to this input. During shutdown, regulator output
5
EN
voltage falls to zero, RESET output remains valid and supply current
is reduced to 10 A (typ.)
µ
No connect.
6
7
8
NC
VIN
Power Supply Input.
Detected input Voltage. VDET and VOUT can be connected together.
VDET
6
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Enable
When actively pulled low, the PMOS pass transistor
shuts off, and all internal circuits are powered down. In
this state, the quiescent current is less than 10µA. This
pin behaves much like an electronic switch.
RESET Output
The RESET output is driven active low within 40µsec of
VDET falling through the reset threshold.RESET is main-
tained active for a minimum of 140msec after VDET rises
above the reset threshold. The AME1300 has an active-
low RESET output. The output of the AME1300 is guar-
anteed vaild down to VDET = 1V and is optimized to reject
fast transient glitches on the VDET line.
n External Capacitors
The AME1300 is stable with an output capacitor to
ground of 2.2µF or greater. Ceramic capacitors have the
lowest ESR, and will offer the best AC performance. Con-
versely, Aluminum Electrolytic capacitors exhibit the high-
est ESR, resulting in the poorest AC response. Unfortu-
nately, large value ceramic capacitors are comparatively
expensive. One option is to parallel a 0.1µF ceramic
capacitor with a 10µF Aluminum Electrolytic. The benefit
is low ESR, high capacitance, and low overall cost.
A second capacitor is recommended between the in-
put and ground to stabilize Vin. The input capacitor should
be at least 0.1µF to have a beneficial effect.
A third capacitor can be connected between the BY-
PASS pin and GND. This capacitor can be a low cost
Polyester Film variety between the value of 0.001~0.01µF.
A larger capacitor improves the AC ripple re-jection,but
also makes the output come slowly. This “Soft” turn-on
is desirable in some applications to limit turn-on surges.
All capacitors should be placed in close proximity to
the pins. A “Quiet” ground termination is desirable. This
can be achieved with a “Star” connection.
7
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
Reset VOLt VS. Temperature
Reset Time VS. Temperature
0.265
0.260
0.255
0.250
0.245
0.240
0.235
0.230
0.225
0.220
220
215
210
205
200
195
190
-45
-5
25
55
85
115
-45
-5
25
55
85
115
Temperature (oC)
Temperature (oC)
Reset Vth VS. Temperature
Dropout Voltage VS. Temp.
2.650
2.648
2.646
2.644
2.642
2.640
2.638
2.636
2.634
2.632
2.630
230
220
210
200
190
180
170
160
150
Vout=3.0V
Vth=2.63V
-45
-5
25
55
85
115
-45
-5
25
55
85
115
Temperature (oC)
Temperature (oC)
Load Regulation VS. Temp.
0.55
0.50
0.45
0.40
0.35
0.30
-20
0
20
40
60
80
Temperature (oC)
8
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Package Dimension
MSOP-8
MILLIMETERS
INCHES
MIN
SYMBOLS
MIN
-
MAX
1.07
0.20
0.91
0.38
0.33
0.23
0.17
3.10
4.98
3.10
MAX
0.042
0.006
0.036
0.015
0.013
0.009
0.0065
0.12
A
A1
A2
b
-
0.05
0.81
0.28
0.03
0.14
0.14
2.90
4.78
2.90
0.002
0.03
0.011
0.011
0.0055
0.006
0.114
0.188
0.114
u
b1
c
c1
D
0.196
0.122
E
E1
e
0.65 TYP
1.95 TYP
0.406 0.686
0.0255 TYP
0.0767 TYP
0.016 0.027
e1
L
0.94 REF
0.254 TYP
0.037 REF
0.010 TYP
L1
L2
0o
8o
0o
8o
è
NOTE:
1. Controlling dimension : Millimeter, converted inchdimension
are not necessarily exact.
2. Dimensiioning and tolerancing per ansi Y14.5m-1994.
3. Dimension "d" does not include mold flash,protrusion or gate
burr, mold flash,protrusion and gate burr shall not exceed
0.15mm(0.006") per side. Dimension e1 do not include inter-lead
flash or protrusion, inter-lead flash and protrusion shall not
exceed 0.15mm(0.006") per side.
4. The package top be smaller than the package bottom. Dimen-
sion d and e1 are determined at outermost extremes of the
plastic body exclusive of mold flash, tie bar burrs, gate burrs
and interlead flash, but including any mismatch between the top
and bottom of the plastic body.
5. Dimension 'b' does not include dambar protrusion. Allowable
dambar protrusion shall be 0.08mm(0.0031) total in excess of
the "b" dimension at maximum material condition.
9
AME, Inc.
300mA CMOS LDO with RESET Function
AME1300
n Tape and Reel Diagram
PIN 1
W
P
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
12mm
Pitch (P)
9.1mm
Part Per Full Reel
4000
Reel Size
13in
MSOP-8L
10
www.ame.com.tw
E-Mail: sales@ame.com.tw
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. , May 2003
Document: 2006&7-DS1300-B
Corporate Headquarter
AME, Inc.
2F, 189 Kang-Chien Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
U.S.A.(Subsidiary)
Analog Microelectronics, Inc.
3100 De La Cruz Blvd. Suite 201
Santa Clara, CA. 95054-2046
Tel : (408) 988-2388
Fax: 886 2 2659-2989
Fax: (408) 988-2489
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