power management pmic

B05

Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the B05 family does

This selection guide covers the A_S-1WR3 and B_LS-1WR3 series of 1W DC-DC converter modules from Xingning Yicheng Electronics. Designed for distributed power systems requiring isolated positive/negative or single outputs, these modules serve digital, analog, and relay circuits. The document details 48 specific part numbers with varying input voltages (5V, 12V, 15V, 24V) and output configurations. Key features include short-circuit protection, 1500VDC isolation, and a wide operating temperature range of -40°C to +105°C. It provides comprehensive electrical specifications, including efficiency, ripple, and load regulation, alongside physical dimensions and EMC compliance data for engineers selecting the appropriate module.

Next step
Start building with B05 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
Ordering code:
01 — Key specifications

B0503LS-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output voltage 3.3 V EVISUN datasheet, p. 1 — 产品型号表
output current 303 mA EVISUN datasheet, p. 1 — 产品型号表
supply voltage range 4.5 V 5.5 V EVISUN datasheet, p. 1 — 产品型号表
switching frequency 200 kHz EVISUN datasheet, p. 3 — 产品通用特性
operating temperature -40 °C 105 °C 温度≥85℃降额使用(见图2); 产品通用特性 EVISUN datasheet, p. 3 — 产品通用特性
standby current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output noise voltage 30 mV EVISUN datasheet, p. 3
output count 1 EVISUN datasheet, p. 1 — 产品型号表
02 — FAQ

B0503LS-1WR3 frequently asked questions

What is the maximum operating temperature for the B0503LS-1WR3?

The maximum operating temperature is 105 °C, with derating required when the temperature is ≥85℃ (see Figure 2) as per general product characteristics.

How many outputs does the B0503LS-1WR3 have?

The B0503LS-1WR3 has 1 output.

What is the output current of the B0503LS-1WR3?

The output current is 303 mA.

What is the output noise voltage?

The output noise voltage is 30 mV.

What is the output voltage of the B0503LS-1WR3?

The output voltage is 3.3 V.

What is the quiescent current of the B0503LS-1WR3?

The quiescent current is 6 mA.

What is the standby current?

The standby current is 6 mA.

What is the supply voltage range for the B0503LS-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0503LS-1WR3?

The switching frequency is 200 kHz.

01 — Key specifications

B0505LS-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output voltage 5 V EVISUN datasheet, p. 1 — 产品型号表
output current 200 mA EVISUN datasheet, p. 1 — 产品型号表
supply voltage range 4.5 V 5.5 V EVISUN datasheet, p. 1 — 产品型号表
switching frequency 200 kHz EVISUN datasheet, p. 3 — 产品通用特性
operating temperature -40 °C 105 °C 温度≥85℃降额使用(见图2); 产品通用特性 EVISUN datasheet, p. 3 — 产品通用特性
standby current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output noise voltage 30 mV EVISUN datasheet, p. 3
output count 1 EVISUN datasheet, p. 1 — 产品型号表
02 — FAQ

B0505LS-1WR3 frequently asked questions

What is the maximum operating temperature for the B0505LS-1WR3?

The maximum operating temperature is 105 °C, with derating required when the temperature is ≥85℃ (see Figure 2) as a general product characteristic.

What is the output count for the B0505LS-1WR3?

The output count is 1.

What is the output current of the B0505LS-1WR3?

The output current is 200 mA.

What is the output noise voltage?

The output noise voltage is 30 mV.

What is the output voltage of the B0505LS-1WR3?

The output voltage is 5 V.

What is the quiescent current?

The quiescent current is 6 mA.

What is the standby current?

The standby current is 6 mA.

What is the supply voltage range for the B0505LS-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0505LS-1WR3?

The switching frequency is 200 kHz.

01 — Key specifications

B0509LS-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output voltage 9 V EVISUN datasheet, p. 1 — 产品型号表
output current 112 mA EVISUN datasheet, p. 1 — 产品型号表
supply voltage range 4.5 V 5.5 V EVISUN datasheet, p. 1 — 产品型号表
switching frequency 200 kHz EVISUN datasheet, p. 3 — 产品通用特性
operating temperature -40 °C 105 °C 温度≥85℃降额使用(见图2); 产品通用特性 EVISUN datasheet, p. 3 — 产品通用特性
standby current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output noise voltage 30 mV EVISUN datasheet, p. 3
output count 1 EVISUN datasheet, p. 1 — 产品型号表
02 — FAQ

B0509LS-1WR3 frequently asked questions

What is the operating temperature limit for the B0509LS-1WR3 under derating conditions (temperature ≥85°C) as per general product characteristics?

The operating temperature is 105 °C.

What is the output count for the B0509LS-1WR3?

The output count is 1.

What is the output current of the B0509LS-1WR3?

The output current is 112 mA.

What is the output noise voltage?

The output noise voltage is 30 mV.

What is the output voltage of the B0509LS-1WR3?

The output voltage is 9 V.

What is the quiescent current of the B0509LS-1WR3?

The quiescent current is 6 mA.

What is the standby current?

The standby current is 6 mA.

What is the supply voltage range for the B0509LS-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0509LS-1WR3?

The switching frequency is 200 kHz.

01 — Key specifications

B0512LS-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output voltage 12 V EVISUN datasheet, p. 1 — 产品型号表
output current 84 mA EVISUN datasheet, p. 1 — 产品型号表
supply voltage range 4.5 V 5.5 V EVISUN datasheet, p. 1 — 产品型号表
switching frequency 200 kHz EVISUN datasheet, p. 3 — 产品通用特性
operating temperature -40 °C 105 °C 温度≥85℃降额使用(见图2); 产品通用特性 EVISUN datasheet, p. 3 — 产品通用特性
standby current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output noise voltage 30 mV EVISUN datasheet, p. 3
output count 1 EVISUN datasheet, p. 1 — 产品型号表
02 — FAQ

B0512LS-1WR3 frequently asked questions

What is the operating temperature limit for the B0512LS-1WR3 under derating conditions?

The operating temperature is 105 °C when the temperature is ≥85℃ for derating use.

What is the output count for the B0512LS-1WR3?

The output count is 1.

What is the output current of the B0512LS-1WR3?

The output current is 84 mA.

What is the output noise voltage?

The output noise voltage is 30 mV.

What is the output voltage of the B0512LS-1WR3?

The output voltage is 12 V.

What is the quiescent current?

The quiescent current is 6 mA.

What is the standby current?

The standby current is 6 mA.

What is the supply voltage range for the B0512LS-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0512LS-1WR3?

The switching frequency is 200 kHz.

01 — Key specifications

B0515LS-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output voltage 15 V EVISUN datasheet, p. 1 — 产品型号表
output current 67 mA EVISUN datasheet, p. 1 — 产品型号表
supply voltage range 4.5 V 5.5 V EVISUN datasheet, p. 1 — 产品型号表
switching frequency 200 kHz EVISUN datasheet, p. 3 — 产品通用特性
operating temperature -40 °C 105 °C 温度≥85℃降额使用(见图2); 产品通用特性 EVISUN datasheet, p. 3 — 产品通用特性
standby current 6 mA EVISUN datasheet, p. 2 — 产品型号表
output noise voltage 30 mV EVISUN datasheet, p. 3
output count 1 EVISUN datasheet, p. 1 — 产品型号表
02 — FAQ

B0515LS-1WR3 frequently asked questions

What is the operating temperature limit for the B0515LS-1WR3?

The operating temperature is 105 °C, with derating required when the temperature is ≥85℃ (see Figure 2) as a general product characteristic.

What is the output count for the B0515LS-1WR3?

The output count is 1.

What is the output current of the B0515LS-1WR3?

The output current is 67 mA.

What is the output noise voltage?

The output noise voltage is 30 mV.

What is the output voltage of the B0515LS-1WR3?

The output voltage is 15 V.

What is the quiescent current of the B0515LS-1WR3?

The quiescent current is 6 mA.

What is the standby current?

The standby current is 6 mA.

What is the supply voltage range for the B0515LS-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0515LS-1WR3?

The switching frequency is 200 kHz.

03 — Alternatives

Closest matches to B05

B0503S-1WR3 1.4× higher switching frequency, similar operating temperature, similar output current
B0505S-1W 3.8× higher quiescent current, 2.6× lower switching frequency, 2.0× higher output noise voltage
LM2596 9.9× higher output current, 4.5× higher supply voltage range, 1.3× lower switching frequency
LM2596-12 9.9× higher output current, 4.5× higher supply voltage range, 3.6× higher output voltage
LM2576 9.9× higher output current, 8.0× higher supply voltage range, 3.8× lower switching frequency
LM2576-12 9.9× higher output current, 8.0× higher supply voltage range, 3.8× lower switching frequency
MC34063A 10.0× higher output noise voltage, 6.1× lower switching frequency, 4.3× lower standby current
MC33063A 6.1× lower switching frequency, 4.3× lower standby current, 4.3× higher supply voltage range
Design help What do I need around the B05? →