CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The CM1117A is a series of low dropout three-terminal regulators with a dropout of 1.1V at 600mA output current. These products have been optimized for low voltage where transient response and minimum input voltage are critical. These CM1117A provide current limit and thermal shutdown. Its circuit includes a trimmed band-gap reference to assure output voltage accuracy to be within
FEATURES
Low Dropout Voltage: 1.1V at 600mA output Current. Output Noise from 10Hz to 10KHz: 0.003% PSRR at Io = 300mA and f =120Hz: 75dB Output Voltage Accuracy:
± 1%
On-Chip Thermal Shutdown Maximum Quiescent Current: IQMAX =5mA ESD (Human Body Model): 3.5KV Operation Junction Temperature –40 to 125℃
± 1%. On –chip thermal
shutdown provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. The CM1117A is available in 2.5V and 3.3V versions. The fixed versions integrate the adjust resistors. It is also available in an adjustable version which can set the output voltage with two external resistors.
APPLICATIONS
DVD/CD-ROM USB Device Add-on Card DVD Player PC Motherboard
PIN CONFIGURATION
SOT-89 Front View
GND/ADJ
OUTPUT 2
1
Figure 1. Package Types of CM1117A
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INPUT 3
Champion Microelectronic Corporation
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
ORDERING INFORMATION
Package Type SOT-89 CM1117AKCM89 CM1117ASCM89 CM1117ACM89 CM1117AGKCM89 CM1117AGSCM89 CM1117AGCM89 Operating Temperature Range (TA) 0℃ ~ +85℃ 0℃ ~ +85℃ 0℃ ~ +85℃ 0℃ ~ +85℃ 0℃ ~ +85℃ 0℃ ~ +85℃ Output Voltage 2.5V 3.3V ADJ. 2.5V 3.3V ADJ.
*Note: G : Suffix for Pb Free Product
BLOCK DIAGRAM
Figure 2. Functional Block Diagram of CM1117A
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
ABSOLUTE MAXIMUM RATINGS (Note 1)
Parameter Symbol Value Unit Input Voltage VIN 15 V Operating Junction Temperature Range TJ 150 ℃ Storage Temperature Range TSTG -65 to 150 ℃ Lead Temperature (Soldering, 10sec) TLEAD 300 ℃ ESD (Human Body Model) ESD 3500 V ESD (Machine Model) ESD 400 V Note 1: Stresses greater than those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “ Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
RESOMMENDED OPERATING CONDITIONS
Parameter Input Voltage Operating Junction Temperature Range Storage Temperature Range Symbol VIN Min. -40 -65 Max 12 125 150 Units V
TJ TSTG
℃ ℃
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
ELECTRICAL CHARACTERISTICS
Operating Conditions: VIN
≤ 10V, TJ =25 ℃ ,unless otherwise specified. (P ≤ maximum power dissipation) Limit appearing in Boldface type apply over the entire junction temperature range for operation, -40℃ to 125℃
Parameter Symbol Test Conditions CM1117A Min. 1.238 1.225 2.475 2.450 3.267 3.235 Typ. 1.250 1.250 2.5 2.5 3.3 3.3 0.035 1.0 1.0 0.20 1.0 1.0 1.1 0.75 0.9 60 120 5.0 5.0 5.0 60 75 0.5 TA = 125℃, 1000hrs. TA = 25℃, 10Hz ≤ f ≤ 10KHz Junction Temperature 0.3 0.003 150 25 mA mA dB % % % Max. 1.262 V 1.270 2.525 2.550 3.333 3.365 0.2 6.0 6.0 0.40 10.0 10.0 1.3 V V % mV mV % mV mV V A Unit
Reference Voltage
VREF
Output Voltage
VOUT
10mA ≤ IOUT ≤ 600mA, 1.4V ≤ VIN - VOUT ≤ 8V P ≤ maximum power dissipation CM1117A-2.5 IOUT = 10mA, VIN= 4.5V, TJ=25℃ 10mA ≤ IOUT ≤ 600mA, 3.9V ≤ VIN ≤ 10V CM1117A-3.3 IOUT = 10mA, VIN= 5.0V, TJ=25℃ 10mA ≤ IOUT ≤ 600mA, 4.75V ≤ VIN ≤ 10V
CM1117A-ADJ IOUT = 10mA, 1.5V ≤ VIN - VOUT
CM1117A-ADJ IOUT = 10mA, VIN= VOUT 2V, TJ=25℃
≤ 10V
Line Regulator
Δ
VOUT
CM1117A-3.3 IOUT = 10mA, 1.5V ≤ VIN - VOUT ≤ 10V CM1117A-2.5 IOUT = 10mA, 1.5V ≤ VIN - VOUT ≤ 10V
CM1117A-ADJ (VIN= VOUT) = 2V, 10mA ≤ IOUT ≤ 600mA
Load Regulation
Δ
VOUT
CM1117A-3.3 CM1117A-2.5
(VIN= VOUT) = 2V, 10mA ≤ IOUT ≤ 600mA (VIN= VOUT) = 2V, 10mA ≤ IOUT ≤ 600mA
Dropout Voltage Current Limit Adjust Pin Current Adjust Pin Current Change Minimum Load Current Quiescent Current Ripple Rejection Temperature Stability Long-Term Stability RMS Output Noise (% of VOUT ) Thermal Shutdown Thermal Shutdown Hysteresis Thermal Resistance (Junction to case) ILIMIT
Δ VREF =1% , IOUT = 0.6A
(VIN – VOUT ) = 2V
μA
1.4V ≤ (VIN - VOUT) ≤ 10V, 10mA ≤ IOUT ≤ 600mA 1.5V ≤ (VIN - VOUT) ≤ 10V(ADJ only)
f = 120Hz, COUT =22 μ F Tantalum (VIN – VOUT )= 3V, IOUT =300 mA VIN= VOUT + 1.25V
0.2 1.7
℃ ℃ ℃/W ℃/W
θ JC
SOT-89 SOT-223
100 33
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
APPLICATION CIRCUIT
CM1117A-ADJ
IN ADJ
10uF Tantalum
VIN=11V
9V at 0.6A
OUT
R1
22uF Tantalum
R2
VOUT = VREF * (1+R2/R1) + IADJ *R2
VIN=5.3V
10uF Tantalum
CM1117A-3.3
IN GND OUT
3.3V at 0.6A
22uF Tantalum
Figure 3. Typical Applications of CM1117A
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
PACKAGE DIMENSION
SOT-89 (M89)
D D1
A
φ1.0
E
H
L
e e1
5°
C
8°
A L b b1 C D D1 H E e1
b
b1
b
e
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CM1117A
600mA LOW DROPOUT VOLTAGE REGULATOR
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.
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