LMR14006YDDCR.A
Buck RegulatorThe LMR14006YDDCR.A is a buck regulator from Texas Instruments. View the full LMR14006YDDCR.A datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Switching Regulators (Buck)Overview
Part: Texas Instruments LMR14006
Type: Buck Regulator
Description: A 4–40 V input, 600 mA buck regulator with ultra-low 28 μA standby current in sleep mode, 1 μA shutdown current, and fixed switching frequencies of 1.1 MHz or 2.1 MHz.
Operating Conditions:
- Supply voltage: 4–40 V
- Operating temperature: -40 to 125 °C (junction)
- Output current: up to 600 mA
- Switching frequency: 1.1 MHz (X version) or 2.1 MHz (Y version)
Absolute Maximum Ratings:
- Max supply voltage: 45 V (VIN to GND)
- Max continuous current: 1200 mA (current limit)
- Max junction/storage temperature: 150 °C (junction operation), 165 °C (storage)
Key Specs:
- Operating input voltage: 4 V to 40 V
- Shutdown supply current: 1 μA (typ) at V EN = 0V
- Operating quiescent current (non-switching): 28 μA (typ) at no load, V IN = 12V
- Feedback voltage: 0.765 V (typ)
- High-side MOSFET On-resistance: 600 mΩ (typ) at V IN = 12V, CB to SW = 5.8V
- Current limit: 1200 mA (typ) at V IN = 12V, T J = 25°C
- Switching frequency (LMR14006X): 1100 kHz (typ)
- Switching frequency (LMR14006Y): 2100 kHz (typ)
- Thermal shutdown threshold: 170 °C (typ)
Features:
- Ultra Low 28 μA Standby Current in Sleep Mode
- Input Voltage Range 4 V to 40 V
- 1 μA Shutdown Current
- High Duty Cycle Operation Supported
- Output Current up to 600 mA
- 1.1 MHz and 2.1 MHz Switching Frequency
- Internal Compensation
- High Voltage Enable Input
- Internal Soft Start
- Over Current Protection
- Over Temperature Protection
- Small Overall Solution Size (TSOT-6L Package)
Applications:
- Industrial Distributed Power Systems
- Automotive
- Battery Powered Equipment
- Portable Handheld Instruments
- Portable Media Players
Package:
- TSOT-6L (2.9mm × 1.6 mm)
Features
- 1 · Ultra Low 28 μA Standby Current in Sleep Mode
- Input Voltage Range 4 V to 40 V
- 1 μA Shutdown Current
- High Duty Cycle Operation Supported
- Output Current up to 600 mA
- 1.1 MHz and 2.1 MHz Switching Frequency
- Internal Compensation
- High Voltage Enable Input
- Internal Soft Start
- Over Current Protection
- Over Temperature Protection
- Small Overall Solution Size (TSOT-6L Package)
Applications
- Industrial Distributed Power Systems
- Automotive
- Battery Powered Equipment
- Portable Handheld Instruments
- Portable Media Players
Pin Configuration
CB
1
2
3
4
5
6
LMR14006
GND
FB
SW
VIN
SHDN
PIN 1 ID
DDC Package TSOP-6L Top View
Electrical Characteristics
VIN = /SHDN = 12V, TA = 25°C, unless otherwise specified.
| SYMBOL | PARAMETER | CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| VIN (Input Power Supply) | VIN (Input Power Supply) | VIN (Input Power Supply) | VIN (Input Power Supply) | VIN (Input Power Supply) | VIN (Input Power Supply) | VIN (Input Power Supply) |
| V IN | Operating input voltage | 4 | 40 | V | ||
| I SHDN | Shutdown supply current | V EN = 0V | 1 | 3 | μA | |
| I Q | Operating quiescent current (non- switching) | no load, V IN = 12V | 28 | μA | ||
| UVLO | Undervoltage lockout thresholds | Rising threshold | 4 | V | ||
| UVLO | Undervoltage lockout thresholds | Falling threshold | 3 | |||
| SHDN | SHDN | SHDN | SHDN | SHDN | SHDN | SHDN |
| V SHDN_Thre | Rising SHDN Threshold Voltage | 1.05 | 1.25 | 1.38 | V | |
| I SHDN_PIN | Input current | SHDN = 2.3V | -4.2 | μA | ||
| I SHDN_PIN | Input current | SHDN = 0.9V | -1 | |||
| I SHDN_HYS | Hysteresis current | -3 | μA | |||
| HIGH-SIDE MOSFET | HIGH-SIDE MOSFET | HIGH-SIDE MOSFET | HIGH-SIDE MOSFET | HIGH-SIDE MOSFET | HIGH-SIDE MOSFET | HIGH-SIDE MOSFET |
| R DS_ON | On-resistance | V IN = 12V, CB to SW = 5.8V | 600 | m Ω | ||
| VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) |
| V FB | Feedback voltage | 0.747 | 0.765 | 0.782 | V | |
| CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT | CURRENT LIMIT |
| I LIMIT | Current limit | V IN = 12V, T J = 25°C | 1200 | mA | ||
| THERMAL PERFORMANCE | THERMAL PERFORMANCE | THERMAL PERFORMANCE | THERMAL PERFORMANCE | THERMAL PERFORMANCE | THERMAL PERFORMANCE | THERMAL PERFORMANCE |
| T SHDN | Thermal shutdown threshold | 170 | °C | |||
| T HYS | Hysteresis | 10 | °C |
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| PARAMETER | MIN | MAX | UNIT | |
|---|---|---|---|---|
| Input Voltages | V IN to GND | -0.3 | 45 | V |
| Input Voltages | SHDN to GND | -0.3 | 45 | V |
| Input Voltages | FB to GND | -0.3 | 7 | V |
| Input Voltages | CB to SW | -0.3 | 7 | V |
| Output Voltages | SW to GND | -1 | 45 | V |
| Output Voltages | SW to GND less than 30ns transients | -2 | 45 | V |
| T J Operation Junction Temperature | -40 | 150 | °C |
Recommended Operating Conditions
Over operating free-air temperature range (unless otherwise noted)
| PARAMETER | MIN | MAX | UNIT | |
|---|---|---|---|---|
| Buck Regulator | V IN | 4 | 40 | V |
| Buck Regulator | CB | 4 | 46 | V |
| Buck Regulator | CB to SW | -0.3 | 6 | V |
| Buck Regulator | SW | -1 | 40 | |
| Buck Regulator | FB | 0 | 5.5 | V |
| Control | SHDN | 0 | 40 | V |
| Temperature | Operating junction temperature range, T J | -40 | 125 | °C |
Thermal Information
| THERMAL METRIC (1) | TSOT (6 PINS) | UNIT | |
|---|---|---|---|
| R θ JA | Junction-to-ambient thermal resistance | 102 | °C/W |
| R θ JCtop | Junction-to-case (top) thermal resistance | 36.9 | °C/W |
| R θ JB | Junction-to board characterization parameter | 28.4 | °C/W |
Typical Application
Figure 9. LMR14006 Design Example with 2.1 MHz Switching Frequency
Below are the recommended typical output voltage inductor/capacitor combinations for optimized total solution size.
| P/N | Vout(V) | R1(k Ω ) | R2(k Ω ) | L( μ H) | Cout( μ F) |
|---|---|---|---|---|---|
| LMR14006 Y | 5 | 54.9(1%) | 10(1%) | 3.3 | 22 |
| LMR14006 Y | 12 | 147(1%) | 10(1%) | 3.3 | 10 |
Figure 10. Application Circuit, 12 V Output
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| LMR14006 | Texas Instruments | — |
| LMR14006X | Texas Instruments | — |
| LMR14006XDDCR | Texas Instruments | — |
| LMR14006XDDCR.A | Texas Instruments | — |
| LMR14006XDDCRG4 | Texas Instruments | — |
| LMR14006XDDCT | Texas Instruments | — |
| LMR14006XDDCT.A | Texas Instruments | — |
| LMR14006Y | Texas Instruments | — |
| LMR14006YDDCR | Texas Instruments | — |
| LMR14006YDDCRG4 | Texas Instruments | — |
| LMR14006YDDCT | Texas Instruments | — |
| LMR14006YDDCT.A | Texas Instruments | — |
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