ETC1 CM2833MIM25 300ma cmos ldo with enable Datasheet

CM2833
300mA CMOS LDO WITH ENABLE
GENERAL DESCRIPTION
FEATURES
The CM2833 family is a positive voltage linear regulator
!
Very Low Dropout Voltage
developed utilizing CMOS technology featured low quiescent
!
Low Current Consumption: Typ. 30µA, Max. 35µA
current (30µA typ.), low dropout voltage, and high output
!
Output Voltage: 1.8V, 1.9V, 2.2V, 2.5V, 2.7V, 2.8V, 3.0V,
EN input connected to CMOS has low bias current. The
!
High Accuracy Output Voltage: +/- 1.5%
space-saving SOT-23-5 package is attractive for “Pocket” and
!
Guaranteed 300mA Output
“Hand Held” applications.
!
Input Range up to 7.0V
3.3V, 3.5V, 3.6V, and 3.8V
voltage accuracy, making them ideal for battery applications.
!
Thermal Shutdown
These rugged devices have both Thermal Shutdown, and
!
Current Limiting
Current Fold-back to prevent device failure under the “Worst”
!
Compact Package: SOT-23-5
of operating conditions.
!
Factory Pre-set Output Voltages
!
Short Circuit Current Fold-Back
!
Low Temperature Coefficient
In application requiring a low noise, regulated supply, place a
1000pF capacitor between Bypass and Ground.
The CM2833 is stable with an output capacitance of 2.2µF or
greater.
APPLICATIONS
24 Hours Technical Support--WebSIM
!
Battery-powered devices
!
Champion provides customers an online circuit simulation tool
Personal communication devices
!
Home electric/electronic appliances
!
PC peripherals
called WebSIM. You could simply logon our website at
www.champion-micro.com for details.
TYPICAL APPLICATIONS
IN
IN
C M 2833
BYP
GND
5V
2003/11/20 Rev. 1.2
C1
1uF
OUT
OUT
EN
C2
1nF
Champion Microelectronic Corporation
C3
2 .2 u F
Page 1
CM2833
300mA CMOS LDO WITH ENABLE
PIN CONFIGURATION
SOT-23-5
Top View
BYP VOUT
1
2
3
VIN
GND
4
EN
5
BLOCK DIAGRAM
IN
OUT
Overcurrent
Shutdown
1uA
R1
Thermal
Shutdown
EN
-
BYP
AM P
+
Vref = 1.176V
R2
GND
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 2
CM2833
300mA CMOS LDO WITH ENABLE
ORDERING INFORMATION
Part Number
CM2833DIM25
CM2833EIM25
CM2833HIM25
CM2833KIM25
CM2833MIM25
CM2833NIM25
CM2833PIM25
CM2833SIM25
CM2833UIM25
CM2833VIM25
CM2833XIM25
Output Voltage
1.8V
1.9V
2.2V
2.5V
2.7V
2.8V
3.0V
3.3V
3.5V
3.6V
3.8V
Temperature Range
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
-40℃ ~ +85℃
Package
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
Note: For other pre-set output voltage requirements, please contact Champion Sales office.
ABSOLUTE MAXIMUM RATINGS
OPERATING RATINGS
Input Voltage
Ambient Temperature Range (TA) ……... -40℃ to +85℃
…………….……………………………. +7V
PD / (VIN - Vo) mA
Output Current
…………………….……
Output Voltage
…………………… GND-0.3V to VIN+0.3V
ESD Classification
Junction Temperature Range
…..…... -40℃ to +125℃
………………………………………… B
THERMAL INFORMATION
Parameter
Maximum
Thermal Resistance (Θjc)
SOT-23-5
160
Internal Power Dissipation (PD)
SOT-23-5
320
(ΔT = 100℃)
Maximum Junction Temperature
150
Maximum Lead Temperature (10 Sec)
300
Caution: Stress above the listed absolute rating may cause permanent damage to the device.
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Unit
℃/W
℃/W
℃
℃
Page 3
CM2833
300mA CMOS LDO WITH ENABLE
ELECTRICAL CHARACTERISTICS
TA = +25℃; unless otherwise noted
Parameter
Symbol
Input Voltage
VIN
Output Voltage Accuracy
VOUT
Dropout Voltage
VDROPOUT
Output Current
IO
CM2833
Test Conditions
Min.
Typ.
Note 1
IO = 1mA
IO = 300mA,
VOUT=VO(NOM)-1.5%,
-1.5
Max.
Unit
7
V
1.5
%
1.2V<VO(NOM)<=2.0V
1300
2.0V<VO(NOM)<=2.5V
800
mV
300
2.5V<VO(NOM)
VOUT > 1.2V
300
300
mV
mA
Current Limit
ILIM
VOUT > 1.2V
Short Circuit Current
ISC
VOUT < 0.95V
150
300
mA
Quiescent Current
IQ
IO = 0mA
30
35
μA
Ground Pin Current
IGND
Line Regulation
REGLINE
450
mA
30
50
μA
IOUT=5mA, VIN=VOUT+1 to
VOUT <= 3.0V
-0.15
0.03
0.15
%
VOUT+2
VOUT > 3.0V
-0.3
0.06
0.3
%
0.2
1
IO = 1mA to 300mA
Load Regulation
REGLOAD
Over Temperature Shutdown
OTS
150
%
℃
Over Temperature Hysteresis
OTH
30
℃
VOUT Temperature Coefficient
TC
25
ppm/℃
Power Supply Rejection
Power Supply Rejection
PSRR
PSRR
IO=1mA to 300mA
IO = 100mA
CO=2.2µF ceramic
f=1kHz
60
f=10kHz
50
f=100kHz
40
IO = 100mA
f=1kHz
75
CO=2.2µF ceramic
f=10kHz
55
CBYP=0.01µF
f=100kHz
30
f=10Hz to 100kHz
CO=2.2µF
30
IO = 10mA, CBYP=0µF
CO=100µF
20
f=10Hz to 100kHz
CO=2.2µF
30
IO = 10mA, CBYP=0.01µF
CO=100µF
20
Output Voltage Noise
eN
Output Voltage Noise
eN
Shutdown Supply Current
ISD
VIN=5.0V, VOUT=0V, VEN < VEL
IEH
VEN=VIN, VIN=2.6V to 7V
EN Input Bias Current
EN Input Threshold
2.0
dB
dB
μVrms
μVrms
3.0
μA
0.1
μA
IEL
VEN=VIN, VIN=2.6V to 7V
1.0
3.0
μA
VEH
VIN=2.6V to 7V
VIN/2+0.8V
VIN
V
VEL
VIN=2.6V to 7V
0
VIN/2-0.8V
V
Note 1. VIN(MIN) = VOUT + VDROPOUT
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 4
CM2833
300mA CMOS LDO WITH ENABLE
DETAILED DESCRIPTION
The CM2833 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current
protection, thermal shutdown, and short circuit protection.
The P-channel pass transistor receives data from the error amplifier, over-current shutdown, short output protection, and thermal
protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current
and Thermal shutdown circuits become active when the junction temperature exceeds 150℃, or the current exceeds 300mA.
During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops
below 120℃.
The CM2833 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents
over-stress. The CM2833 also incorporates current fold-back to reduce power dissipation when the output is short-circuited. This
feature becomes active when the output drops below 1.05V, and reduces the current flow by 65%. Full current is restored when
the voltage exceeds 0.95V.
ENABLE
The Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shut off, and all internal circuits are
powered down. In this state, the quiescent current is less than 2µA. This pin behaves much like an electronic switch.
EXTERNAL CAPACITOR
The CM2833 is stable with an output capacitor to ground of 2.2µF or greater. It can keep stable even with higher or poor ESR
capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be
larger than 0.1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground
termination is desirable.
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 5
CM2833
300mA CMOS LDO WITH ENABLE
TYPICAL ELECTRICAL CHARACTERISTICS
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 6
CM2833
300mA CMOS LDO WITH ENABLE
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 7
CM2833
300mA CMOS LDO WITH ENABLE
2003/11/20 Rev. 1.2
Champion Microelectronic Corporation
Page 8
CM2833
300mA CMOS LDO WITH ENABLE
PACKAGE DIMENSION
SOT-23-5 (M25)
D
5
4
b1
With Plating
c
c1
A
A1
E
E1
A2
b
b
Base Metal
b1
c
Section B-B
c1
D
E
1
2
3
e
E1
b
L
e1
L1
e
θ1
e1
θ
θ1
θ
A2
A
θ2
θ2
A1
L
2003/11/20 Rev. 1.2
See Section B-B
L1
Champion Microelectronic Corporation
Page 9
CM2833
300mA CMOS LDO WITH ENABLE
NUMBERING SCHEME
Ordering Number: CM2833XYZ (note1)
note1:
CM2833 : 300mA CMOS LDO with enable
X : Suffix for voltage output (note 2)
Y : Suffix for Temperature Range (note 3)
Z : Suffix for Package Type (note 4)
note 2: see CMOS LDO Voltage Suffix Table
CM2833 will provide options of A(1.5V), D (1.8V), E(1.9V),, H(2.2V), K(2.5V), M(2.7V), N(2.8V), P(3.0V), S(3.3V), U(3.5V),
V(3.6V), X(3.8V)
note 3:
Y= I : -40℃~+85℃
(only I grade support for all CMOS LDOs)
note 4:
Z is single alphabet with or without digits
M25 : SOT-25 (TR only)
CMOS LDO Voltage Suffix Table
Output Voltage
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
2003/11/20 Rev. 1.2
Suffix
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Output Voltage
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
4.0V
Champion Microelectronic Corporation
Suffix
P
Q
R
S
T
U
V
W
X
Y
Z
Page 10
CM2833
300mA CMOS LDO WITH ENABLE
IMPORTANT NOTICE
Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated
circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify,
before placing orders, that the information being relied on is current.
A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or
environmental damage.
CMC integrated circuit products are not designed, intended, authorized, or warranted to be suitable for
use in life-support applications, devices or systems or other critical applications.
understood to be fully at the risk of the customer.
Use of CMC products in such applications is
In order to minimize risks associated with the customer’s applications, the
customer should provide adequate design and operating safeguards.
HsinChu Headquarter
Sales & Marketing
5F, No. 11, Park Avenue II,
Science-Based Industrial Park,
HsinChu City, Taiwan
T E L : +886-3-567 9979
F A X : +886-3-567 9909
11F, No. 306-3, SEC. 1, Ta Tung Road,
Hsichih, Taipei Hsien 221, Taiwan
2003/11/20 Rev. 1.2
T E L : +886-2-8692 1591
F A X : +886-2-8692 1596
Champion Microelectronic Corporation
Page 11
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