CHAMP CM2836 300ma low esr cmos ldo with enable Datasheet

CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
GENERAL DESCRIPTION
FEATURES
The CM2836/B/C 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
More Options Output Voltage
voltage accuracy, making them ideal for battery applications.
High Accuracy Output Voltage: +/- 2%
EN input connected to CMOS has low bias current. The
Guaranteed 300mA Output
space-saving SC70 package is attractive for “Pocket” and
Input Range up to 7.0V
“Hand Held” applications.
Thermal Shutdown
These rugged devices have both Thermal Shutdown, and
Current Limiting
Current limit to prevent device failure under the “Worst” of
Stability with Low ESR Capacitors
operating conditions.
Compact Package: SOT-23 / SOT-89 / SC70
In application requiring a low noise, regulated supply, place a
Factory Pre-set Output Voltages
1000pF capacitor between Bypass and Ground.
Low Temperature Coefficient
The CM2836/B/C is stable with a Low ESR output
capacitance of 1.0µF or greater.
APPLICATIONS
Battery-powered devices
Personal communication devices
Home electric/electronic appliances
PC peripherals
TYPICAL APPLICATIONS
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 1
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
PIN CONFIGURATION
SOT-23-3
Top View
SOT-23-5
Top View
3
Pin 1
Pin 2
Pin 3
2836
GND
VOUT
VIN
2836B
VIN
VOUT
GND
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
2836
VIN
GND
EN
BYP
VOUT
Pin 1
Pin 2
Pin 3
2836
GND
VIN
VOUT
2
1
SC70-5
Top View
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
SOT-89
Top View
CM2836
VIN
GND
EN
BYP
VOUT
2836B
NC
GND
NC
VIN
VOUT
2836C
NC
VIN
NC
GND
VOUT
1
2
3
BLOCK DIAGRAM
IN
OUT
O v e rc u rre n t
S h u td o w n
1uA
R1
T h e rm a l
S h u td o w n
EN
-
BYP
+
AMP
Vref = 1.176V
R2
GND
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 2
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
ORDERING INFORMATION
Example:
Part Number
Output Voltage
Temperature Range
Package
CM2836/B/CGSIM23
3.3V
-40℃ ~ +85℃
SOT-23
CM2836/B/CGSIM25
3.3V
-40℃ ~ +85℃
SOT-23-5
CM2836/B/CGSIM89
3.3V
-40℃ ~ +85℃
SOT-89
CM2836/B/CGSIM75
3.3V
-40℃ ~ +85℃
SC70-5
Note: For other pre-set output voltage requirements, please contact Champion Sales office.
Please refer to page 10
ABSOLUTE MAXIMUM RATINGS
OPERATING RATINGS
Input Voltage
…………….……..…………………………. +7V
Ambient Temperature Range (TA) …..…..... -40℃ to +85℃
PD / (VIN - Vo) mA
Junction Temperature Range ……...…... -40℃ to +150℃
Output Current
…………………….……
Output Voltage
………………….…… GND-0.3V to VIN+0.3V
ESD Classification …………………………………………… B
THERMAL INFORMATION
Parameter
Thermal Resistance (Θjc)
Package
Maximum
Unit
160
℃/W
SOT-23
SOT-23-5
Thermal Resistance (Θjc)
SOT-89
100
℃/W
Thermal Resistance (Θjc)
SC70-5
250
℃/W
250
mW
SOT-23
Internal Power Dissipation (PD)
SOT-23-5
(ΔT = 100℃)
SOT-89
400
mW
SC70-5
200
mW
Maximum Junction Temperature
150
℃
Maximum Lead Temperature (10 Sec)
300
℃
Caution: Stress above the listed absolute rating may cause permanent damage to the device.
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 3
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
ELECTRICAL CHARACTERISTICS
TA = +25℃; unless otherwise noted
CM2836/B/C
Parameter
Symbol
Test Conditions
Unit
Min.
Input Voltage
VIN
Output Voltage Accuracy
VOUT
Dropout Voltage
IO = 1mA to 300mA
VDROPOUT
IO = 300mA,
VOUT=VO(NOM)-2%,
Typ.
Max.
Note 1
7
V
-2
2
%
1.2V<VO(NOM) ≤ 2.0V
1300
2.0V<VO(NOM) ≤ 2.5V
400
2.5V<VO(NOM)
300
mV
Output Current
IO
VOUT > 1.2V
300
Current Limit
ILIM
VOUT > 1.2V
300
Short Circuit Current
ISC
Vo<0.8V
300
500
mA
Quiescent Current
IQ
IO = 0mA
30
35
μA
Ground Pin Current
IGND
IO = 1mA to 300mA
30
50
μA
Line Regulation
REGLINE
IOUT=5mA, VIN=VOUT+1 to VOUT+2
0.02
0.1
%
Load Regulation
REGLOAD
IO=1mA to 300mA
0.2
1
%
Over Temperature Shutdown
OTS
150
℃
Over Temperature Hysteresis
OTH
30
℃
VOUT Temperature Coefficient
TC
40
ppm/℃
Power Supply Rejection
-0.1
mA
450
f=1kHz
60
f=10kHz
50
f=100kHz
40
IO = 100mA
f=1kHz
65
CO=2.2µF ceramic
f=10kHz
45
CBYP=0.01µF
f=100kHz
25
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
mA
IO = 100mA
PSRR
dB
CO=2.2µF ceramic
(Sot23-3/Sot-89)
Power Supply Rejection
PSRR
dB
(Sot23-5/SC70-5)
Output Voltage Noise
μVrms
eN
(Sot23-3/Sot-89)
Output Voltage Noise
μVrms
eN
(Sot23-5/SC70-5)
Shutdown Supply Current
ISD
VIN=5.0V, VOUT=0V, VEN < VEL
IEH
VEN=VIN, VIN=2.6V to 7V
IEL
VEN=0, VIN=2.6V to 7V
VEH
VIN=2.6V to 7V
VEL
VIN=2.6V to 7V
2.0
μA
0.1
μA
2.0
μA
2
VIN
V
0
0.4
V
0.2
EN Input Bias Current
0.2
EN Input Threshold
Note 1. VIN(MIN) = VOUT + VDROPOUT
Note 2. The input voltage should be better applied before a current source load is applied to avoid start up problem.
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 4
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
DETAILED DESCRIPTION
The CM2836/B/C family of CMOS regulators contains a PMOS pass transistor, voltage reference, error amplifier, over-current
protection, output short protection, and thermal shutdown.
The P-channel pass transistor receives data from the error amplifier, over-current protection, output short 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 CM2836/B/C switches from voltage mode to current mode when the load exceeds the rated output current. This prevents
over-stress.
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 CM2836/B/C is stable with a Low ESR output capacitor to ground of 1.0µF or greater. It can keep stable even with higher
ESR capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should
be larger than 1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground
termination is desirable.
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 5
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
TYPICAL CHARACTERISTICS
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 6
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 7
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
PACKAGE DIMENSION
SOT-23 (M23)
D
3
b1
With Plating
c
c1
A
A1
E
E1
A2
b
b
Base Metal
b1
c
Section B-B
c1
D
E
1
E1
2
e
b
L
e1
L1
e
θ1
e1
θ
θ1
θ
A2
A
θ2
θ2
A1
L
L1
See Section B-B
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
2007/06/28 Rev1.1
See Section B-B
L1
Champion Microelectronic Corporation
Page 8
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
SOT-89 (M89)
D
D1
A
L
5°
H
E
φ1.0
e
C
e1
A
8°
L
b
b1
C
D
D1
H
E
e1
b
b1
b
e
SC70-5
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 9
CM2836/B/C
300mA LOW ESR CMOS LDO WITH ENABLE
NUMBERING SCHEME
Ordering Number: CM2836/B/CXYZ (note1)
Ordering Number: CM2836/B/CGXYZ (note2)
note1:
CM2836/B/C: 300mA CMOS LDO with enable
X : Suffix for voltage output (note 3)
Y : Suffix for Temperature Range (note 4)
Z : Suffix for Package Type (note 5)
note2:
CM2836/B/C: 300mA CMOS LDO with enable
G : Suffix for Pb Free Product
X : Suffix for voltage output (note 3)
Y : Suffix for Temperature Range (note 4)
Z : Suffix for Package Type (note 5)
note 3: see CMOS LDO Voltage Suffix Table
CMOS LDO Voltage Suffix Table
Output Voltage
Suffix
Output Voltage
Suffix
1.2V
AC
2.5V
K
1.5V
A
2.6V
L
1.7V
C
2.7V
M
1.8V
D
2.8V
N
2.0V
F
3.0V
P
2.1V
G
3.1V
Q
2.2V
H
3.3V
S
2.3V
I
3.6V
V
note 4:
Y= I : -40℃~+85℃
(only I grade support for all CMOS LDOs)
note 5:
Z is single alphabet with or without digits
M25 : SOT-23-5 (TR only)
M23 : SOT-23 (TR only)
M89 : SOT-89 (TR only)
SC70-5 (TR only)
2007/06/28 Rev1.1
Champion Microelectronic Corporation
Page 10
CM2836/B/C
300mA LOW ESR 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. Use of CMC products in such applications is
understood to be fully at the risk of the customer. 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
7F-6, No.32, Sec. 1, Chenggong Rd., Nangang
District, Taipei City 115, Taiwan
2007/06/28 Rev1.1
T E L : +886-2-2788 0558
F A X : +886-2-2788 2985
Champion Microelectronic Corporation
Page 11
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