NCV33269
The NCV33269 is an electronic component from onsemi. View the full NCV33269 datasheet below including absolute maximum ratings.
Manufacturer
onsemi
Overview
Part: MC33269/NCV33269 series — onsemi
Type: Low Dropout Linear Voltage Regulator
Description: An 800 mA low dropout positive voltage regulator series with fixed and adjustable output versions, 1.0 V dropout, and internal thermal and short-circuit protection.
Operating Conditions:
- Operating ambient temperature: -40 to +125 °C
- Output current: up to 800 mA
Absolute Maximum Ratings:
- Max supply voltage: 20 V
- Max junction temperature: +150 °C
- Max storage temperature: +150 °C
Key Specs:
- Output Voltage (3.3 Suffix, Iout = 10 mA, TA = 25 °C): 3.27 V min, 3.3 V typ, 3.33 V max
- Reference Voltage (Adjustable, Iout = 10 mA, Vin - Vout = 2.0 V, TA = 25 °C): 1.235 V min, 1.25 V typ, 1.265 V max
- Line Regulation (Iout = 10 mA, Vin = [Vout + 1.5 V] to 20 V, TA = 25 °C): 0.3 % max
- Load Regulation (Vin = Vout + 3.0 V, Iout = 10 mA to 800 mA, TA = 25 °C): 0.5 % max
- Dropout Voltage (Iout = 800 mA): 1.1 V typ, 1.35 V max
- Ripple Rejection (10 Vpp, 120 Hz Sinewave; Iout = 500 mA): 55 dB min
- Current Limit (Vin - Vout = 10 V): 800 mA min
- Quiescent Current (Fixed Output, 1.5 V ≤ Vout ≤ 3.5 V): 5.5 mA typ, 8.0 mA max
Features:
- Space Saving DPAK, SO-8 and SOT-223 Power Packages
- 3.3 V, 3.5 V, 5.0 V, 12 V and Adjustable Versions
- 1.0 V Dropout
- Thermal Protection
- Output Current in Excess of 800 mA
- Short Circuit Protection
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Output Trimmed to 1.0% Tolerance
- Pb-Free Devices
Applications:
- Current Regulator
- Battery Backed-Up Power Supply
- Digitally Controlled Voltage Regulator
Package:
- DPAK (CASE 369C)
- SO-8 (CASE 751)
- SOT-223 (CASE 318E)
- TO-220AB (CASE 221AB)
Features
- Space Saving DPAK, SO -8 and SOT -223 Power Packages
- 3.3 V, 3.5 V, 5.0 V , 12 V and Adjustable Versions 2.85 V version available as MC34268
- 1.0 V Dropout
- Thermal Protection
- Output Current in Excess of 800 mA
- Short Circuit Protection
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC -Q100 Qualified and PPAP Capable
- Output Trimmed to 1.0% Tolerance
- These are Pb -Free Devices
Applications
Figures 11 through 15 are typical application circuits. The output current capability of the regulator is in excess of 800 mA, with a typical dropout voltage of less than 1.0 V. Internal protective features include current and thermal limiting.
- The MC33269 requires an external output capacitor for stability. The capacitor should be at least 10 m F with an equivalent series resistance (ESR) of less than 10 W but greater than 0.2 W over the anticipated operating temperature range. With economical electrolytic capacitors, cold temperature operation can pose a problem. As temperature decreases, the capacitance also decreases and the ESR increases, which could cause the circuit to oscillate. Also capacitance and ESR of a solid tantalum capacitor is more stable over temperature. The use of a low ESR ceramic capacitor placed within close proximity to the output of the device could cause instability.
supply input filter with long wire lengths. This will reduce the circuit's sensitivity to the input line impedance at high frequencies. A 0.33 m F or larger tantalum, mylar, ceramic, or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with shortest possible lead or track length directly across the regulator's input terminals. Applications should be tested over all operating conditions to insure stability.
** An input bypass capacitor is recommended to improve transient response or if the regulator is connected to the
An input capacitor is not necessary for stability, however it will improve the overall performance.
Figure 11. Typical Fixed Output Application
Figure 13. Current Regulator
The Schottky diode in series with the ground leg of the upper regulator shifts its output voltage higher by the forward voltage drop of the diode. This will cause the lower device to remain off until the input voltage is removed.
Figure 14. Battery Backed -Up Power Supply
Internal thermal limiting circuitry is provided to protect the integrated circuit in the event that the maximum junction temperature is exceeded. When activated, typically at 170 ° C, the output is disabled. There is no hysteresis built into the thermal limiting circuit. As a result, if the device is overheating, the output will appear to be oscillating. This feature is provided to prevent catastrophic failures from accidental device overheating. It is not intended to be used as a substitute for proper heat -sinking.
Figure 14. Battery Backed -Up Power Supply
***C Adj is optional, however it will improve the ripple rejection. The MC34269 develops a 1.25 V reference voltage between the output and the adjust terminal. Resistor R1, operates with constant current to flow through it and resistor R2. This current should be set such that the Adjust Pin current causes negligible drop across resistor R2. The total current with minimum load should be greater than 8.0 mA.
Figure 12. Typical Adjustable Output Application
R2 sets the maximum output voltage. Each transistor reduces the output voltage when turned on.
Figure 15. Digitally Controlled Voltage Regulator
Absolute Maximum Ratings
| Rating | Rating | Symbol | Value | Unit |
|---|---|---|---|---|
| Power Supply Input Voltage | Power Supply Input Voltage | V in | 20 | V |
| Power Dissipation | Power Dissipation | |||
| Case 369C (DPAK) | T A = 25 ° C Thermal Resistance, Junction - to - Ambient Thermal Resistance, Junction - to - Case | P D q JA q JC | Internally Limited 92 6.0 | W ° C/W ° C/W |
| Case 751 (SO - 8) | T A = 25 ° C Thermal Resistance, Junction - to - Ambient Thermal Resistance, Junction - to - Case | P D q JA q JC | Internally Limited 160 25 | W ° C/W ° C/W |
| Case 221A (TO - 220) | T A = 25 ° C Thermal Resistance, Junction - to - Ambient Thermal Resistance, Junction - to - Case | P D q JA q JC | Internally Limited 65 5.0 | W ° C/W ° C/W |
| Case 318E (SOT - 223) | T A = 25 ° C Thermal Resistance, Junction - to - Ambient Thermal Resistance, Junction - to - Case | P D q JA q JC | Internally Limited 156 15 | W ° C/W ° C/W |
| Operating Die Junction Temperature Range | Operating Die Junction Temperature Range | T J | - 40 to +150 | ° C |
| Operating Ambient Temperature Range MC33269 NCV33269 | Operating Ambient Temperature Range MC33269 NCV33269 | T A | - 40 to +125 - 40 to +125 | ° C |
| Storage Temperature | Storage Temperature | T stg | - 55 to +150 | ° C |
| Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM) | Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM) | ESD | 4000 400 | V |
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.
ELECTRICAL CHARACTERISTICS (C O = 10 m F, T A = 25 ° C, for min/max values T A = -40 ° C to +125 ° C, unless otherwise noted.)
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (I out = 10 mA, T A = 25 ° C) 3.3 Suffix (V CC = 5.3 3.5 Suffix (V CC = 5.5 5.0 Suffix (V CC = 7.0 | V O | 3.27 3.465 4.95 11.88 | 3.3 3.5 5.0 12 | 3.33 3.535 5.05 12.12 | V |
| Output Voltage (Line, Load and Temperature) (Note 1) (1.25 V ≤ V in - V out ≤ 15 V, I out = 500 mA) (1.35 V ≤ V in - V out ≤ 10 V, I out = 800 mA) 3.3 Suffix 3.5 Suffix 5.0 Suffix | V O | V | |||
| Reference Voltage for Adjustable Voltage (I out = 10 mA, V in - V out = 2.0 V, T A = 25 ° C) | V ref | 3.43 4.90 11.76 1.235 | 3.5 5.0 12 1.25 | 3.57 5.10 12.24 1.265 | V |
| Reference Voltage (Line, Load and Temperature) (Note 1) for Adjustable Voltage (1.25 V ≤ V in - V out ≤ 15 V, I out = 500 mA) (1.35 V ≤ V in - V out ≤ 10 V, I out = 800 mA) | V ref | 1.225 | 1.25 | 1.275 | V |
| Line Regulation (I out = 10 mA, V in = [V out + 1.5 V] to V in = 20 V, T A = 25 ° C) | Reg line | - | - | 0.3 | % |
| Load Regulation (V in = V out + 3.0 V, I out = 10 mA to 800 mA, T A = 25 ° C) | Reg load | - | - | 0.5 | % |
| Dropout Voltage (I out = 500 mA) (I out = 800 mA) | V in - V out | - - | 1.0 1.1 | 1.25 1.35 | V |
| Ripple Rejection (10 V pp , 120 Hz Sinewave; I out = 500 mA) | RR | 55 | - | - | dB |
| Current Limit (V in - V out = 10 | I Limit | 800 | - | - | mA |
| Quiescent Current (Fixed Output) (1.5 V ≤ V out ≤ 3.5 V) (5 V ≤ V out ≤ 12 V) | I Q | - - | 5.5 - | 8.0 20 | mA |
| Minimum Required Load Current Fixed Output Voltage Adjustable Voltage | I Load | - 8.0 | - - | 0 - | mA |
| Adjustment Pin Current | I Adj | - | - | 120 | m A |
Figure 1. Internal Schematic
Figure 2. Dropout Voltage versus Output Load Current
Figure 2. Dropout Voltage versus Output Load Current
Figure 4. Dropout Voltage versus Temperature
Figure 6. MC33269 Ripple Rejection versus Frequency
Figure 3. Transient Load Regulation
Figure 5. MC33269 -XX Output DC Current versus Input -Output Differential Voltage
Figure 7. MC33269 -ADJ Ripple Rejection versus Frequency
Figure 8. SOP -8 Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length
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Figure 9. DPAK Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length
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Figure 10. SOT -223 Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length
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Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| 1210W2F270JT5E | Royal Ohm | — |
| MC33269 | onsemi | — |
| MC34268 | onsemi | — |
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