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AW37418ACSR

6MHz, 750mA Extremely Small DC-DC Buck Converter

Datasheet :
Preview - AW37418ACSR - Datasheet

Product details

Parameters

Power Supply (Min) (V) 2.7
Power Supply (Max) (V) 5.5
IQ (μA) 45
Load Current (Max) (A) 0.75
Vout (Min) (V) 0.9
Vout (Max) (V) 1.1
Control Interface /
EMI Optimization NO
Temperature -40℃~85℃
Special Function PWM
Package (mm) WLCSP 0.968X0.888-5B

Package | Pins | Size

WLCSP 0.968X0.888-5B

Features

6MHz PWM Switching Frequency at Heavy Load Auto PFM/PWM – AW37418A/B/C Force PWM – AW37419A/B/C Output Voltage 0.9V – AW37418A, AW37419A 0.95V – AW37418B, AW37419B 1.1V –AW37418C, AW37419C 45μA PFM Quiescent Current at Light Load –AW37418A 750mA Output Current Capacity 1.5A Inductor Cycle-by-Cycle Peak Current Limit Protection <0.1uA Shutdown Current Small Chip Inductor in 0805 Case Size Allowed WLCSP 0.968mm × 0.888mm - 5B Package

Description

AW37418/9 series are 6MHz DC-DC step-down converters with extremely small package. The AW37418 works in three operation modes. At heavy load, the device operates in 6MHz fixed frequency PWM mode. At light load, the AW37418 enters peak-current-control PFM mode automatically to reduce the switching losses. In PFM mode, the quiescent current consumed by the part is reduced to 45μA for the purpose to extend the battery life. The AW37419A works in forced PWM mode which can achieve extremely low output ripple throughout the load. The device is off in Shutdown mode and reduces the supply current to 0.1μA(typical). AW37418/9 series are available in WLCSP-5B 0.968mm × 0.888mm -5B Packages. The high switching frequency 6MHz allows the use of the economic size-saving external components, two ceramic capacitors and one 0.47μH inductor are required.

Technical documentation
Type
Title
Language
Date
Datasheet DS_AW37418A_8B_8C_9A_9B_9C_EN_V1.1 英文   2026-03-27

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

Evaluation board

AW37418CSR_EVB_V1.0 — The AW37418CSR_EVB_V1.0 is a demonstration board designed for AW37418,It can achieve various performance tests and functional demonstrations for DCDC buck converters.

Evaluation board for AW37418

View options
Hardware development

Evaluation board

AW37418CSR_EVB_V1.0 — The AW37418CSR_EVB_V1.0 is a demonstration board designed for AW37418,It can achieve various performance tests and functional demonstrations for DCDC buck converters.

Evaluation board for AW37418

View options