Semicon Fast Delivery Electronic Components Chips IC Original MCU Microcontroller IC Chip LM9036MX-3.3/NOPB
Product Attributes
| TYPE | DESCRIPTION |
| Category | Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear |
| Mfr | Texas Instruments |
| Series | - |
| Package | Tape & Reel (TR)Cut Tape (CT)
Digi-Reel® |
| Product Status | Active |
| SPQ | 95Tube |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.40V @ 50mA |
| Current - Output | 50mA |
| Current - Quiescent (Iq) | 20 µA |
| Current - Supply (Max) | 2 mA |
| PSRR | 60dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | LM9036 |
Introduce
Ordinary voltage regulator power supply is through the sampling circuit to control the on/off of the power supply regulator tube to change the internal resistance of the power supply so that the voltage on the load is stable.
Switching voltage regulator power supply is through the control of the proportion of the switching tube on and off to adjust the output voltage.
Advantages
The advantages of switching voltage regulator power supply.
Advantages 1: low power consumption, high efficiency, compact and lightweight
Its greater advantage is the high efficiency. In the switching state, the transistor itself consumes less function, and the switching regulator itself can reach seventy to eighty percent efficiency, while not needing a step-down transformer. Its output transformer works at high frequencies and with a volume of less than 50 Hz in the I.F. transformer. The circuit of the switching regulator, therefore, has the added advantage of being small and lightweight. It can operate over a wide voltage range.
Advantage 2: Wide range of voltage regulation
The voltage output from the switching regulator is regulated by the duty cycle of the excitation signal, and changes in the input signal voltage can be compensated by frequency modulation or widening. In this way, in the case of large changes in the frequency grid voltage, it can still ensure a more stable output voltage. Overall, the voltage range of the switching power supply is very wide and the voltage stabilization effect is relatively good.
Advantage 3: Flexible circuit forms
For example, there are self-excited and other-excited, wide-ranging and frequency-regulated, single-ended and double-ended, and so on. Power supply developers can exploit the advantages of various types of circuits to design and develop switching voltage regulators that can meet different applications.
Role
From the invention of electricity to this day, the convenience of electricity can be said by the development of society, people's lives have brought a lot of progress and convenience. But it brings us convenience at the same time, but also brings us a lot of trouble. In our production live, we often encounter voltage instability, especially in the middle of the line, as well as during the peak period of electricity. In an increasingly high-precision society, if the voltage is unstable, it will bring great inconvenience to our production life. The only alternative to changing the circuit or changing the location is to set up an electrical auxiliary instrument. And as far as the power auxiliary apparatus is concerned, the least expensive and simplest machinery is the voltage regulator.
In the early days, the main function of the voltage regulator was to stabilize the voltage. The regulator could raise the voltage in the event of unstable voltage fluctuations, or in the event of low voltage, to ensure that the equipment could operate normally. However, with the development of technology, as well as people's increasingly high requirements for equipment. Today's voltage regulators, not only ensure that the voltage is normal, but also ensure the safety of the operation of electricity. Therefore, in addition to ensuring the normal operation of the equipment, the voltage regulator also has short circuit protection, short phase protection, and many other protection functions.
Main Parameters
The main parameters of the DC voltage regulator.
DC regulated power supply (voltage regulator) of the main technical parameters can be divided into two categories: one is the quality indicators, reflecting the merits of DC voltage stabilization power supply. It includes stability, equivalent internal resistance (output resistance), ripple voltage, and temperature coefficient. The other category is the characteristic index, which reflects the inherent characteristics of the DC-regulated power supply. For example, input DC regulated power supply voltage, output voltage, output current, and output voltage regulation range.
1, voltage regulation rate SV
Voltage regulation rate is an important indicator to characterize the performance of DC voltage stabilization power supply, also known as the stabilization factor or stability factor. It is characterized when the input voltage VI changes when the DC voltage stabilization power supply output voltage VO stability, usually expressed as a percentage of the relative change in the input and output voltage per unit of output voltage.
2, the current adjustment rate SI
The current regulation rate is a major indicator of the load capacity of the DC voltage stabilizer, also known as the current stability factor. It is characterized when the input voltage remains unchanged, DC voltage stabilization power supply due to changes in the load current (output current), and the output voltage fluctuations caused by the suppression capacity, under the conditions of the specified load current changes, usually expressed as a percentage of the change in output voltage per unit output voltage current regulation rate of DC voltage stabilization power supply.
3,Rpple rejection ratio SR
The ripple rejection ratio reflects the DC voltage regulator on the input side of the introduction of the mains voltage rejection capability, when the DC voltage regulator input and output DC voltage regulator components remain unchanged, the ripple rejection ratio is often expressed in terms of input ripple voltage peak-to-peak and output ripple voltage peak-to-peak ratio, generally expressed in decibels, but sometimes can be expressed as a percentage, or directly with the ratio of the two said.
4,Temperature stability K
The temperature stability of the integrated DC power supply is specified in the DC power supply operating temperature Ti maximum range of change (Tmin ≤ Ti ≤ Tmax) DC power supply output voltage relative change in percentage value.
About Products
The LM9036 ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 25µA Ground Pin current at a 0.1mA load, the LM9036 is ideally suited for automotive and other battery operated systems. The LM9036 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM9036 has a 40V maximum operating voltage limit, a −40°C to +125°C operating temperature range, and ±5% output voltage tolerance over the entire output current, input voltage, and temperature range.
