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CAT6217 150 mA CMOS LDO Regulator
Description
The CAT6217 is a 150 mA CMOS low dropout regulator that provides fast response time during load current and line voltage changes. The quick-start feature allows the use of an external bypass capacitor to reduce the overall output noise without affecting the turn-on time of just 150 ms. With zero shutdown current and low ground current of 55 mA typical, the CAT6217 is ideal for battery-operated devices with supply voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit disables the output at supply voltages under 2.1 V typical. The CAT6217 offers 1% initial accuracy and low dropout voltage, 90 mV typical at 150 mA. Stable operation is provided with a 1 mF ceramic capacitor, reducing required board space and component cost. Other features include output short-circuit current limit and thermal protection. The device is available in the low profile (1 mm max height) 5-lead TSOT-23 package.
Features
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5 1 TSOT-23 TD SUFFIX CASE 419AE
PIN CONNECTIONS
1 VIN GND EN (Top View) BYP VOUT
* * * * * * * * * * * * * *
Guaranteed 150 mA Output Current Low Dropout Voltage of 90 mV Typical at 150 mA Stable with 1 mF Ceramic Output Capacitor External 10 nF Bypass Capacitor for Low Noise Quick-start Feature No-load Ground Current of 55 mA Typical Full-load Ground Current of 80 mA Typical 1.0% Initial Accuracy (VOUT 2.0 V) 2.0% Accuracy Over Temperature (VOUT 2.0 V) "Zero" Current Shutdown Mode Current Limit and Under Voltage Lockout Thermal Protection 5-lead TSOT-23 Package These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant
MARKING DIAGRAM
RTYM
RT = CAT6217 Device Code Y = Production Year (last digit) M = Production Month: 1 - 9, A, B, C
PIN FUNCTION
Pin # 1 2 3 4 Name VIN GND EN BYP Function Supply voltage input. Ground reference. Enable input (active high); a 2.5 MW pull-down resistor is provided. Optional bypass capacitor connection for noise reduction and PSRR enhancing.
Applications
* Cellular Phones * Battery-powered Devices * Consumer Electronics
5
VOUT LDO Output Voltage.
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet.
(c) Semiconductor Components Industries, LLC, 2009
December, 2009 - Rev. 5
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Publication Order Number: CAT6217/D
CAT6217
VIN VIN 2.3 V to 5.5 V CIN 1 F VIN VOUT VOUT COUT 1 F VIN EN LDO
VOUT VOUT
CAT6217 EN BYP GND
OFF
ON
BYP CBYP (Optional) 10 nF
Reference
Shutdown Switch GND
Figure 1. Typical Application Circuit
Figure 2. CAT6217 Functional Block Diagram
Pin Function VIN is the supply pin for the LDO. A small 1 mF ceramic bypass capacitor is required between the VIN pin and ground near the device. When using longer connections to the power supply, CIN value can be increased without limit. The operating input voltage range is from 2.3 V to 5.5 V. EN is the enable control logic (active high) for the regulator output. It has a 2.5 MW pull-down resistor, which assures that if EN pin is left open, the circuit is disabled. VOUT is the LDO regulator output. A small 1 mF ceramic bypass capacitor is required between the VOUT pin and ground for stability. For better transient response, its value can be increased to 4.7 mF.
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter VIN VEN, VOUT Junction Temperature, TJ Power Dissipation, PD Storage Temperature Range, TS Lead Temperature (soldering, 5 sec.) ESD Rating (Human Body Model)
The capacitor should be located near the device. ESR domain is 5 mW to 500 mW. VOUT can deliver a maximum guaranteed current of 150 mA. A 250 W internal shutdown switch discharges the output capacitor in the no-load condition. GND is the ground reference for the LDO. The pin must be connected to the ground plane on the PCB. BYP is the reference bypass pin. An optional 0.01 mF capacitor can be connected between BYP pin and GND to reduce the output noise and enhance the PSRR at high frequency.
Rating 0 to 6.5 -0.3 to VIN + 0.3 +150 Internally Limited (Note 1) -65 to +150 260 3
Unit V V _C mW _C _C kV
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS (Note 2)
Parameter VIN VEN Junction Temperature Range, TJ Package Thermal Resistance (SOT23-5), JA Range 2.3 to 5.5 0 to VIN -40 to +125 235 Unit V V _C _C/W
NOTE: Typical application circuit with external components is shown above. 1. The maximum allowable power dissipation at any TA (ambient temperature) is PDmax = (TJmax - TA)/qJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 2. The device is not guaranteed to work outside its operating rating.
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CAT6217
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3) (VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 1 mF, ambient temperature of 25C (over recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol VOUT-ACC TCOUT VR-LINE VR-LOAD VDROP IGND Parameter Output Voltage Accuracy Conditions Initial accuracy for VOUT 2.0 V (Note 6) Min -1.0 -2.0 40 VIN = VOUT + 1.0 V to 5.5 V IOUT = 100 mA to 150 mA IOUT = 150 mA IOUT = 0 mA IOUT = 150 mA IGND-SD PSRR Shutdown Ground Current VEN < 0.4 V f = 1 kHz, CBYP = 10 nF f = 20 kHz, CBYP = 10 nF ISC TON eN ROUT-SH REN VUVLO ESR Output short circuit current limit Turn-On Time Output Noise Voltage (Note 5) Shutdown Switch Resistance Enable pull-down resistor Under-voltage lock out (UVLO) threshold COUT equivalent series resistance Logic High Level VIN = 2.3 to 5.5 V VIN = 2.3 to 5.5 V, 0C to +125C junction temperature VLO IEN Logic Low Level Enable Input Current VIN = 2.3 to 5.5 V VEN = 0.4 V VEN = VIN THERMAL PROTECTION TSD THYS Thermal Shutdown Thermal Hysteresis 160 10 C C 0.15 1.5 5 VOUT = 0 V CBYP = 10 nF BW = 10 Hz to 100 kHz 64 54 350 150 45 250 2.5 2.1 500 mA ms mVrms W MW V mW -0.2 -0.4 Load Regulation 0.6 0.1 +0.2 +0.4 1.0 1.3 Dropout Voltage (Note 4) 90 125 150 Ground Current 55 75 90 80 1 2 Power Supply Rejection Ratio dB mA mA mV % Typ Max +1.0 +2.0 ppm/C %/V Unit %
Output Voltage Temp. Coefficient Line Regulation
ENABLE INPUT VHI 1.8 1.6 0.4 1 4 V mA V
3. Specification for 2.80 V output version unless specified otherwise. 4. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1 V differential. During test, the input voltage stays always above the minimum 2.3 V. 5. Specification for 1.8 V output version. 6. For VOUT < 2.0 V, the initial accuracy is 2% and across temperature 3%.
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CAT6217
TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.)
3.0 2.5 OUTPUT VOLTAGE [V] 2.0 1.5 1.0 0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 6.0 OUTPUT VOLTAGE [V] 150 mA 2.87 100 mA 2.86 2.85 2.84 2.83 2.82 2.5 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE [V] 5.5
Figure 3. Dropout Characteristics
2.95 2.87 2.86 OUTPUT VOLTAGE [V] 2.85 2.84 2.83 2.82 0 25 50 75 100 125 150 OUTPUT LOAD CURRENT [mA] -40
Figure 4. Line Regulation
OUTPUT VOLTAGE [V]
2.90
2.85
2.80
2.75
-10 20 50 80 110 TEMPERATURE [C]
140
Figure 5. Load Regulation
100 90 80 70 60 50 0 25 50 75 100 125 150 OUTPUT LOAD CURRENT [mA]
Figure 6. Output Voltage vs. Temperature
65
GROUND CURRENT [mA]
GROUND CURRENT [mA]
60
55
50
45 -40 -10 20 50 80 110 TEMPERATURE [C] 140
Figure 7. Ground Current vs. Load Current
Figure 8. Ground Current vs. Temperature
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CAT6217
TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.)
600 500 GROUND CURRENT [mA] VOUT = 0V 0 0.0 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 6.0 CURRENT LIMIT [mA] . 400 300 200 100 70 60 50 40 30 20 10 0 0.0 1.0 2.0 3.0 4.0 5.0 INPUT VOLTAGE [V] 6.0
Figure 9. Output Short-circuit Current Limit
200
Figure 10. Ground Current vs. Input Voltage
120
DROPOUT VOLTAGE [mV]
DROPOUT VOLTAGE [mV]
150
90
100
60
50
30
0 -40 -10 20 50 80 110 TEMPERATURE [C] 140
0 0 30 60 90 120 150 OUTPUT LOAD CURRENT [mA]
Figure 11. Dropout vs. Temperature (150 mA Load)
1.6 80 70 ENABLE THRESHOLD [V] 1.2 PSRR [dB] 60 50 40 30 20 10 0.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 INPUT VOLTAGE [V] 5.5 0
Figure 12. Dropout vs. Load Current
CBYP = 10 nF
CBYP = 0
0.8
0.4
0.01
0.1 1 10 FREQUENCY [kHz]
100
Figure 13. Enable Threshold vs. Input Voltage
Figure 14. PSRR vs. Frequency (10 mA Load)
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CAT6217
TYPICAL CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.)
70 60 50 PSRR [dB] 40 30 20 10 0 0 100 200 300 400 VIN - VOUT [mV] 500 100 kHz PSRR [dB] 1 kHz 10 kHz 70 60 50 40 30 20 10 0 0 100 200 300 400 VIN - VOUT [mV] 500 10 kHz 1 kHz
100 kHz
Figure 15. PSRR (30 mA Load)
Figure 16. PSRR (150 mA Load)
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CAT6217
TRANSIENT CHARACTERISTICS (shown for 2.80 V output option) (VIN = 3.85 V, IOUT = 100 mA, CIN = COUT = 1 mF, CBYP = 10 nF, TA = 25C unless otherwise specified.)
Figure 17. Enable Turn-on (100 mA Load)
Figure 18. Enable Turn-off (100 mA Load)
Figure 19. Enable Turn-on (150 mA Load)
Figure 20. Enable Turn-off (150 mA Load)
Figure 21. Line Transient Response (3.85 V to 4.85 V)
Figure 22. Load Transient Response (0.1 mA to 150 mA)
Note: All transient characteristics are generated using the evaluation board CAT621XEVAL1.
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CAT6217
PACKAGE DIMENSIONS
TSOT-23, 5 LEAD CASE 419AE-01 ISSUE O SYMBOL
A A1 A2 b c D E1 E E E1 e L L1 L2 0.30 0.01 0.80 0.30 0.12 0.15 2.90 BSC 2.80 BSC 1.60 BSC 0.95 TYP 0.40 0.60 REF 0.25 BSC 0.50 0.05 0.87
D e
MIN
NOM
MAX
1.00 0.10 0.90 0.45 0.20
TOP VIEW
0
8
A2 A
q
b
A1 L1
L
c
L2
SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193.
END VIEW
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CAT6217
Example of Ordering Information (Note 9)
Prefix CAT Device # 6217 Suffix -280 TD G T3
Company ID (Optional)
Product Number 6217
VOUT Voltage (Note 10) 150: 1.50 V 180: 1.80 V 250: 2.50 V 280: 2.80 V 285: 2.85 V 330: 3.30 V
Package TD: TSOT-23
Lead Finish G: NiPdAu
Tape & Reel (Note 11) T: Tape & Reel 3: 3,000 / Reel
ORDERING INFORMATION
Orderable Part Number CAT6217-150TDGT3 CAT6217-180TDGT3 CAT6217-250TDGT3 CAT6217-280TDGT3 CAT6217-285TDGT3 (Note 10) CAT6217-330TDGT3 VOUT Voltage 1.50 V 1.80 V 2.50 V 2.80 V 2.85 V 3.30 V Package TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23 Shipping 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel 3,000 / Tape & Reel
7. All packages are RoHS-compliant (Lead-free, Halogen-free). 8. The standard finish is NiPdAu. 9. The device used in the above example is a CAT6217-280TDGT3 (VOUT = 2.80 V, in a TSOT-23 package, NiPdAu, Tape & Reel, 3,000/Reel). 10. For other voltage options, please contact your nearest ON Semiconductor Sales office. 11. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative
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CAT6217/D

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