power management pmic

B0503S-1WR3

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 B0503S-1WR3 family does

The BXXXXS-1WR3 series are 1W DC-DC converter modules providing isolated, non-regulated single outputs. This family spans input voltages from 3.3V to 24V with corresponding output options, available in commercial, industrial, and military temperature grades. Key parameters include up to 86% efficiency, input current as low as 6mA under no-load, and 1500VDC isolation. These modules are designed for distributed power systems, digital circuits, and relay drivers. They feature continuous short-circuit protection, low ripple, and operate across a -40°C to +105°C range.

Next step
Start building with B0503S-1WR3 → 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

B0503S-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output voltage 3.3 V Evisun datasheet, p. 1 — 产品命名规则
output current 303 mA Evisun datasheet, p. 1 — 产品命名规则
supply voltage range 4.5 V 5.5 V Evisun datasheet, p. 1 — 产品命名规则
switching frequency 100 kHz YLPTEC datasheet, p. 3 — 一般特性
operating temperature -40 °C 105 °C 温度≥85°C降额使用(见图2); 产品通用特性 Evisun datasheet, p. 3 — 产品输出特性
standby current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output noise voltage 30 mV 20MHz bandwidth, other output modules Evisun datasheet, p. 2 — 产品输出特性
output count 1 Evisun datasheet, p. 1 — 产品命名规则
02 — FAQ

B0503S-1WR3 frequently asked questions

What is the operating temperature specification for the B0503S-1WR3?

The operating temperature is 105 °C, with derated usage required when the temperature is ≥85°C (see Figure 2); this is a general product characteristic.

What is the output count for the B0503S-1WR3?

The output count is 1.

What is the output current of the B0503S-1WR3?

The output current is 303 mA.

What is the output noise voltage for other output modules within a 20MHz bandwidth?

The output noise voltage is 30 mV.

What is the output voltage of the B0503S-1WR3?

The output voltage is 3.3 V.

What is the quiescent current of the B0503S-1WR3 under no load with a 5V input module?

The quiescent current is 6 mA.

What is the standby current of the B0503S-1WR3 module?

The standby current is 6 mA with no load and a 5V input module.

What is the supply voltage range for the B0503S-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0503S-1WR3?

The switching frequency is 100 kHz.

01 — Key specifications

B0505S-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output voltage 5 V Evisun datasheet, p. 1 — 产品命名规则
output current 200 mA Evisun datasheet, p. 1 — 产品命名规则
supply voltage range 4.5 V 5.5 V Evisun datasheet, p. 1 — 产品命名规则
switching frequency 100 kHz YLPTEC datasheet, p. 3 — 一般特性
operating temperature -40 °C 105 °C 温度≥85°C降额使用(见图2); 产品通用特性 Evisun datasheet, p. 3 — 产品输出特性
standby current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output noise voltage 30 mV 20MHz bandwidth, other output modules Evisun datasheet, p. 2 — 产品输出特性
output count 1 Evisun datasheet, p. 1 — 产品命名规则
02 — FAQ

B0505S-1WR3 frequently asked questions

What is the operating temperature specification for the B0505S-1WR3?

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

What is the output count for the B0505S-1WR3?

The output count is 1.

What is the output current of the B0505S-1WR3?

The output current is 200 mA.

What is the output noise voltage for other output modules?

The output noise voltage is 30 mV at 20MHz bandwidth.

What is the output voltage of the B0505S-1WR3?

The output voltage is 5 V.

What is the quiescent current of the B0505S-1WR3 module under no load with a 5V input?

The quiescent current is 6 mA when there is no load and the input module is 5V.

What is the standby current of the B0505S-1WR3 module under no load with a 5V input?

The standby current is 6 mA when there is no load and the input module is 5V.

What is the supply voltage range for the B0505S-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0505S-1WR3?

The switching frequency is 100 kHz.

01 — Key specifications

B0509S-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output voltage 9 V Evisun datasheet, p. 1 — 产品命名规则
output current 112 mA Evisun datasheet, p. 1 — 产品命名规则
supply voltage range 4.5 V 5.5 V Evisun datasheet, p. 1 — 产品命名规则
switching frequency 100 kHz YLPTEC datasheet, p. 3 — 一般特性
operating temperature -40 °C 105 °C 温度≥85°C降额使用(见图2); 产品通用特性 Evisun datasheet, p. 3 — 产品输出特性
standby current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output noise voltage 30 mV 20MHz bandwidth, other output modules Evisun datasheet, p. 2 — 产品输出特性
output count 1 Evisun datasheet, p. 1 — 产品命名规则
02 — FAQ

B0509S-1WR3 frequently asked questions

What is the operating temperature limit for the B0509S-1WR3 under general product characteristics?

The operating temperature is 105 °C, with derating required when the temperature is ≥85°C (see Figure 2).

What is the output count for the B0509S-1WR3?

The output count is 1.

What is the output current of the B0509S-1WR3?

The output current is 112 mA.

What is the output noise voltage for other output modules?

The output noise voltage is 30 mV at 20MHz bandwidth.

What is the output voltage of the B0509S-1WR3?

The output voltage is 9 V.

What is the quiescent current of the B0509S-1WR3 under no load with a 5V input module?

The quiescent current is 6 mA.

What is the standby current of the B0509S-1WR3 module?

The standby current is 6 mA with no load and a 5V input module.

What is the supply voltage range for the B0509S-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0509S-1WR3?

The switching frequency is 100 kHz.

01 — Key specifications

B0512S-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output voltage 12 V Evisun datasheet, p. 1 — 产品命名规则
output current 84 mA Evisun datasheet, p. 1 — 产品命名规则
supply voltage range 4.5 V 5.5 V Evisun datasheet, p. 1 — 产品命名规则
switching frequency 100 kHz YLPTEC datasheet, p. 3 — 一般特性
operating temperature -40 °C 105 °C 温度≥85°C降额使用(见图2); 产品通用特性 Evisun datasheet, p. 3 — 产品输出特性
standby current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output noise voltage 30 mV 20MHz bandwidth, other output modules Evisun datasheet, p. 2 — 产品输出特性
output count 1 Evisun datasheet, p. 1 — 产品命名规则
02 — FAQ

B0512S-1WR3 frequently asked questions

What is the operating temperature specification for the B0512S-1WR3?

The operating temperature is 105 °C, with derating required when the temperature is ≥85°C (see Figure 2); this applies to the product's general characteristics.

What is the output count for the B0512S-1WR3?

The output count is 1.

What is the output current of the B0512S-1WR3?

The output current is 84 mA.

What is the output noise voltage for other output modules?

The output noise voltage is 30 mV at 20MHz bandwidth.

What is the output voltage of the B0512S-1WR3?

The output voltage is 12 V.

What is the quiescent current of the B0512S-1WR3 module under no load with a 5V input?

The quiescent current is 6 mA when there is no load and the input module is 5V.

What is the standby current of the B0512S-1WR3 module?

The standby current is 6 mA with no load and a 5V input module.

What is the supply voltage range for the B0512S-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0512S-1WR3?

The switching frequency is 100 kHz.

01 — Key specifications

B0515S-1WR3 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output voltage 15 V Evisun datasheet, p. 1 — 产品命名规则
output current 67 mA Evisun datasheet, p. 1 — 产品命名规则
supply voltage range 4.5 V 5.5 V Evisun datasheet, p. 1 — 产品命名规则
switching frequency 100 kHz YLPTEC datasheet, p. 3 — 一般特性
operating temperature -40 °C 105 °C 温度≥85°C降额使用(见图2); 产品通用特性 Evisun datasheet, p. 3 — 产品输出特性
standby current 6 mA no load, 5V input module Evisun datasheet, p. 2 — 产品输入特性
output noise voltage 30 mV 20MHz bandwidth, other output modules Evisun datasheet, p. 2 — 产品输出特性
output count 1 Evisun datasheet, p. 1 — 产品命名规则
02 — FAQ

B0515S-1WR3 frequently asked questions

What is the operating temperature specification for the B0515S-1WR3?

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

How many outputs does the B0515S-1WR3 have?

The output count is 1.

What is the output current of the B0515S-1WR3?

The output current is 67 mA.

What is the output noise voltage for other output modules within a 20MHz bandwidth?

The output noise voltage is 30 mV.

What is the output voltage of the B0515S-1WR3?

The output voltage is 15 V.

What is the quiescent current of the B0515S-1WR3 under no load with a 5V input module?

The quiescent current is 6 mA.

What is the standby current of the B0515S-1WR3 module?

The standby current is 6 mA with no load and a 5V input module.

What is the supply voltage range for the B0515S-1WR3?

The supply voltage range is 5.5 V.

What is the switching frequency of the B0515S-1WR3?

The switching frequency is 100 kHz.

03 — Alternatives

Closest matches to B0503S-1WR3

B0503LS-1WR3 1.4× lower switching frequency, similar operating temperature, similar output current
B0505S-1W 3.8× higher quiescent current, 3.5× lower switching frequency, 2.0× higher output noise voltage
LM2596 9.9× higher output current, 4.5× higher supply voltage range, 1.8× 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, 5.2× lower switching frequency
LM2576-12 9.9× higher output current, 8.0× higher supply voltage range, 5.2× lower switching frequency
AP63300WU-7 9.9× higher output current, 4.8× higher output voltage, 3.6× higher supply voltage range
MC34063A 10.0× higher output noise voltage, 8.2× lower switching frequency, 4.3× lower standby current
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