LMR36503-Q1 Texas instruments

LMR36503-Q1

Уточнить цену

LMR36503-Q1

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The LMR36503-Q1 is the industrys smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm x 2-mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 3.3 V, 5 V and other adjustable output voltages. The LMR36503-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503-Q1 helps it remain functional during a deep input voltage sag condition, making it an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503-Q1 to an external clock. With the right resistor selection, the LMR36503-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

AEC-Q100-qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
>70% efficiency at 5 mA
- 4 µA I_Q (switching) at 24 V_IN to 3.3 V_OUT (fixed output option)
Miniature solution size and low component cost
- 2-mm × 2-mm HotRod™ package with wettable flanks
- Internal compensation
Designed for automotive applications:
- Junction temperature range –40°C to +150°C
- Pseudo-random spread spectrum compatible with CISPR 25 EMI standard
- Wide input voltage range: 3.0 V (falling threshold) to 65 V
- Adjustable, 3.3-V and 5-V fixed output voltage options available
- Synchronizable with MODE/SYNC pin variant
- Adjustable F_SW: 200 kHz to 2.2 MHz with RT pin variant
- Pin compatible with LMR36506-Q1 (65 V, 600 mA)

Vin (min) (V)	3
Vin (max) (V)	65
Vout (min) (V)	1
Vout (max) (V)	28
Iout (max) (A)	0.3
Iq (typ) (mA)	0.004
Switching frequency (min) (kHz)	200
Switching frequency (max) (kHz)	2200
EMI features	Low parasitic Hotrod packaging, Spread Spectrum
Features	Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package
Operating temperature range (°C)	-40 to 150
Rating	Automotive
TI functional safety category	Functional Safety-Capable
Regulated outputs (#)	1
Control mode	current mode
Duty cycle (max) (%)	99
Type	Converter