MCP1253-ADJI/MS Microchip Technology, MCP1253-ADJI/MS Datasheet
MCP1253-ADJI/MS
Specifications of MCP1253-ADJI/MS
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MCP1253-ADJI/MS Summary of contents
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... The MCP1252 has a switching frequency of 650 kHz, avoiding interference with sensitive IF bands. The MCP1253 has a switching frequency of 1 MHz and allows the use of smaller capacitors than the MCP1252, thus saving board space and cost. Both devices feature a power-good output that can be used to detect out-of-regulation conditions ...
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... MCP1252/3 Functional Block Diagram PGOOD V OUT V IN GND PGOOD V OUT V IN GND DS21752A-page 2 MCP1252-33X50 MCP1253-33X50 140 k - 173 100 1.21V + - + 200 mV Switch Control MCP1252-ADJ MCP1253-ADJ - + 1.21V + - + 200 mV Switch Control SELECT SHDN SHDN C+ C- 2002 Microchip Technology Inc. ...
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... Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = V Supply Voltage V Output Voltage Accuracy V Output Current I OUT SELECT Logic Input Voltage High V Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = GND, V Supply Voltage V Output Voltage Accuracy V Output Current I OUT SELECT Logic Input Voltage Low V Adjustable Output - MCP1252-ADJ, MCP1253-ADJ ...
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... A — 206 — °C -40°C to +85° mA. OUT Units Conditions kHz MCP1252 kHz MCP1253 mV MCP1252 p-p mV MCP1253 p-p µsec SELECT = V IN µsec SELECT = GND V = 3.6V mA, IN OUT SHDN = V , IH(MIN) V from 0 to 90% Nominal OUT Regulated Output Voltage Conditions °C °C ° ...
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... FIGURE 2-2: Output Voltage vs. Supply Voltage (MCP1252-33X50). 3.02 3. 3.00 MCP1252-ADJ 120 mA V 2.99 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Supply Voltage (V) FIGURE 2-3: Output Voltage vs. Supply Voltage (MCP1252-ADJ). 2002 Microchip Technology Inc. = 3.6V 25° µ OUT 100 5.0V 0 2.0 5.0 5 ...
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... Temperature (°C) FIGURE 2-8: Output Voltage vs. Temperature (MCP1252-33X50, MCP1253-33X50). FIGURE 2-9: Line Transient Response. DS21752A-page 6 = 3.6V 25° mF OUT 5. -40 -25 -10 FIGURE 2-10: Temperature (MCP1253-33X50 3. 120 -40 -25 -10 FIGURE 2-11: Temperature (MCP1252-33X50). FIGURE 2-12 mF, all capacitors X7R ceramic. FLY 3.6V ...
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... Start-Up (MCP1252-33X50). 2002 Microchip Technology Inc. = 3.6V 25° 10mF OUT = 5.0V 5.0 5.5 6.0 FIGURE 2-16: Time 3.3V 5.0 5.5 6.0 FIGURE 2-17: Time. FIGURE 2-18: MCP1252/3 = 1mF, all capacitors X7R ceramic. FLY Output Voltage Ripple vs. Output Voltage Ripple vs. Start-Up (MCP1253-33X50). DS21752A-page 7 ...
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... A logic-high signal applied to this pin allows normal operation. 3.8 Select (SELECT) Input or Feedback (FB) Input MCP1252-33X50, MCP1253-33X50: SELECT: Select Input Pin. Connect SELECT to V SELECT to GND for a 5.0V fixed output. MCP1252-ADJ, MCP1253-ADJ: FB: Feedback Pin. A resistor divider connected to this pin determines the adjustable V OUT ) OUT ) IN for 3 ...
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... DEVICE OVERVIEW 4.1 Theory of Operation The MCP1252 and MCP1253 family of devices employ a switched capacitor charge pump to buck or boost an input supply voltage ( regulated output voltage. IN Referring to the Functional Block Diagram and Figure 4-1, the devices perform conversion and regula- tion in three phases. When the devices are not in shut- ...
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... 4.3 Shutdown Mode Driving SHDN low places the MCP1252 or MCP1253 in a low power shutdown mode. This disables the charge pump switches, oscillator and control logic, reducing the quiescent current to 0.1 µA (typical). The PGOOD output high-impedance state during shutdown. 4.4 PGOOD Output ...
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... For optimum results recommended that the external resistors have a tolerance no larger than 1%. 5.3 Recommended Layout ) The MCP1252 and MCP1253 family of devices transfer . These OUT charge at high switching frequencies, producing fast, high peak, transient currents result, any stray inductance in the component layout will produce unwanted noise in the system ...
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... Cell 100 k 1 PWM Contrast Control DS21752A-page 12 1 µ OUT 10 µF 8 SHDN SELECT 4 PGOOD GND MCP1252-33X50 1 µ WHITE LEDS OUT 10 µF 8 SHDN SELECT 59 4 PGOOD GND MCP1252-ADJ 1 µ WHITE LEDS OUT µF 8 SHDN SELECT PGOOD GND MCP1252-ADJ 2002 Microchip Technology Inc. ...
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... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information. * Standard OTP marking consists of Microchip part number, year code, week code, and traceability code. 2002 Microchip Technology Inc. MCP1252/3 Example: 1252SX 233025 ...
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... B .010 .012 .016 MILLIMETERS* MIN NOM MAX 8 0.65 1.18 0.76 0.86 0.97 0.05 0.15 .5.08 4.67 4.90 2.90 3.00 3.10 2.90 3.00 3.10 0.40 0.55 0.70 0.90 0.95 1. 0.10 0.15 0.20 0.25 0.30 0. 2002 Microchip Technology Inc. ...
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... Adjustable Output c) MCP1252T-33X50I/MS: Tape and Reel, Low Noise, Positive-Regulated Charge Pump, Fixed Output a) MCP1253-33X50I/MS: Low Noise, Posi- tive-Regulated Charge Pump, Fixed Output b) MCP1253-ADJI/MS: Low Noise, Posi- tive-Regulated Charge Pump, Adjustable Output c) MCP1253T-ADJI/MS: Tape and Reel, Low Noise, Positive-Regulated Charge Pump, Adjustable Output ...
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... MCP1252/3 NOTES: DS21752A-page 16 2002 Microchip Technology Inc. ...
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... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...
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... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...