LM2734YMKX/NOPB
Switching Voltage Regulators 3V to 20V Input, 1A Step-Down Converter with Light Load Efficiency 6-SOT-23-THIN -40 to 125
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Part Number : LM2734YMKX/NOPB
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Package/Case : SOT-23-THIN
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Brands : Texas Instruments
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Components Categories : Voltage Regulators - DC DC Switching Regulators
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Datesheet : LM2734YMKX/NOPB DataSheet (PDF)
Overview of LM2734YMKX/NOPB
The LM2734 regulator is a monolithic, high-frequency, PWM step-down DC/DC converter in a 6-pin Thin SOT package. The device provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.
With a minimum of external components and online design support through WEBENCH, the LM2734 regulator is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world-class control circuitry allows for on-times as low as 13 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 550 kHz (LM2734Y) or 1.6 MHz (LM2734X), allowing the use of extremely small surface-mount inductors and chip capacitors. Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA.
The LM2734 regulator uses current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.
Key Features
- Thin SOT-6 Package
- 3-V to 20-V Input Voltage Range
- 0.8-V to 18-V Output Voltage Range
- 1-A Output Current
- 550-kHz (LM2734Y) and 1.6-MHz (LM2734X) Switching Frequencies
- 300-mΩ NMOS Switch
- 30-nA Shutdown Current
- 0.8-V, 2% Internal Voltage Reference
- Internal Soft Start
- Current-Mode, PWM Operation
- Thermal Shutdown
- Create a Custom Design Using the LM2734 With WEBENCH® Power Designer
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Manufacturer | Texas Instruments | Product Category | Switching Voltage Regulators |
RoHS | Details | Output Voltage | 800 mV to 18 V |
Output Current | 1 A | Input Voltage, Max | 20 V |
Number of Outputs | 1 Output | Topology | Buck |
Package / Case | SOT-23-Thin-6 | Mounting Style | SMD/SMT |
Switching Frequency | 550 kHz | Quiescent Current | 1.5 mA |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature | + 125 C |
Series | LM2734 | Input Voltage, Min | 3 V |
Brand | Texas Instruments | Development Kit | LM2734YEVAL/NOPB |
Input Voltage | 3 V to 20 V | Operating Supply Current | 1.5 mA |
Product Type | Switching Voltage Regulators | Shutdown | Shutdown |
Factory Pack Quantity | 3000 | Subcategory | PMIC - Power Management ICs |
Supply Voltage - Min | 3 V | Type | Step-Down DC/DC Regulator |
Unit Weight | 0.001270 oz | Vin (min) (V) | 3 |
Vin (max) (V) | 20 | Vout (min) (V) | 0.8 |
Vout (max) (V) | 18 | Iout (max) (A) | 1 |
Iq (typ) (mA) | 2.1 | Switching frequency (min) (kHz) | 400 |
Switching frequency (max) (kHz) | 1900 | Features | Enable, Light Load Efficiency, Pre-Bias Start-Up |
Operating temperature range (°C) | -40 to 125 | Rating | Catalog |
Regulated outputs (#) | 1 | Control mode | current mode |
Duty cycle (max) (%) | 96 |
Warranty & Returns
Warranty, Returns, and Additional Information
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Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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