Texas Instruments LM5123-Q1 Product Info

Parameters

Rating	Automotive
Topology	Boost
Vin (max) (V)	42
Vin (min) (V)	0.8
Vout (max) (V)	57
Vout (min) (V)	5
Control mode	current mode
Features	Adjustable current limit, Bypass Mode, Enable, Frequency synchronization, Improved max. duty cycle, Light-load efficiency, Power good, Spread Spectrum, Synchronous rectification, Tracking, UVLO adjustable
EMI features	Frequency Dithering, Spread Spectrum
Duty cycle (max) (%)	93
Iq (typ) (A)	0.000011
TI functional safety category	Functional Safety-Capable
Operating temperature range (°C)	-40 to 150

Package

VQFN (RGR)-20-12.25 mm² 3.5 x 3.5

Features

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
Functional Safety-Capable
- Documentation available to aid functional safety system design
Suited for wide operating range automotive battery powered applications
- 3.8V to 42V input operating range
- Dynamically programmable VOUT from 5V to 20V, or from 15V to 57V
- Minimum boost input 0.8V when BIAS ≥ 3.8V
- Bypass operation when VSUPPLY > VLOAD
Minimized battery drain
- Shutdown current ≤ 3µA
- Automatic mode transition
- Battery drain in deep sleep ≤ 11µA (bypass operation, charge pump off)
- Battery drain in deep sleep ≤ 38µA (bypass operation, charge pump on)
- BIAS IQ in sleep ≤ 13µA (skip mode)
- Strong 5V MOSFET drivers
Small solution size and low cost
- Maximum switching frequency 2.2MHz
- Internal boot diode
- Constant peak current limit over VIN
- Supports DCR inductor current sensing
- QFN-20 with wettable flanks
Avoid AM band interference and crosstalk
- Optional clock synchronization
- Switching frequency from 100kHz to 2.2MHz
- Selectable switching mode (FPWM, diode emulation, skip mode)
EMI mitigation
- Optional programmable spread spectrum
- Lead-less package
Programmability and flexibility
- Dynamic VOUT tracking
- Dynamic switching frequency programming
- Programmable line UVLO
- Adjustable soft start
- Adaptive dead-time
- PGOOD indicator
Integrated protection features
- Cycle-by-cycle peak current limit
- Overvoltage protection
- HB-SW short protection
- Thermal shutdown

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
Functional Safety-Capable
- Documentation available to aid functional safety system design
Suited for wide operating range automotive battery powered applications
- 3.8V to 42V input operating range
- Dynamically programmable VOUT from 5V to 20V, or from 15V to 57V
- Minimum boost input 0.8V when BIAS ≥ 3.8V
- Bypass operation when VSUPPLY > VLOAD
Minimized battery drain
- Shutdown current ≤ 3µA
- Automatic mode transition
- Battery drain in deep sleep ≤ 11µA (bypass operation, charge pump off)
- Battery drain in deep sleep ≤ 38µA (bypass operation, charge pump on)
- BIAS IQ in sleep ≤ 13µA (skip mode)
- Strong 5V MOSFET drivers
Small solution size and low cost
- Maximum switching frequency 2.2MHz
- Internal boot diode
- Constant peak current limit over VIN
- Supports DCR inductor current sensing
- QFN-20 with wettable flanks
Avoid AM band interference and crosstalk
- Optional clock synchronization
- Switching frequency from 100kHz to 2.2MHz
- Selectable switching mode (FPWM, diode emulation, skip mode)
EMI mitigation
- Optional programmable spread spectrum
- Lead-less package
Programmability and flexibility
- Dynamic VOUT tracking
- Dynamic switching frequency programming
- Programmable line UVLO
- Adjustable soft start
- Adaptive dead-time
- PGOOD indicator
Integrated protection features
- Cycle-by-cycle peak current limit
- Overvoltage protection
- HB-SW short protection
- Thermal shutdown

Description

The LM5123-Q1 device is a wide input range synchronous boost controller that employs peak current mode control.

ELECTRONIC COMPONENTS
All In One Distributor

LM5123-Q1

2.2MHz wide VIN low IQ synchronous boost controller

Texas Instruments LM5123-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

LM5123-Q1

2.2MHz wide VIN low IQ synchronous boost controller

Texas Instruments LM5123-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor