SY26501QDQ (SQ25201QDQ)

70V, 2.5mA Precision Protection APD Bias Dual-Gain Track/Hold Current Mirror

SY26501QDQ 70V, 2.5mA Precision Protection APD Bias Dual-Gain Track/Hold Current Mirror Datasheet

Parameters
Features
Description

Part number	SY26501QDQ
Vin (min) (V)	2.8
Vin (max) (V)	5.5
Current limit (A)	0.68
Switching frequency (min)(kHz)	850
Switching frequency (max)(kHz)	850
Vout (min) (V)	7.8
Vout (max) (V)	70
Vref accuracy (±%)	External reference
Vout accuracy(±%)
Duty cycle (max)(%)	94
Iq (typ) (uA)	500
Features	Track/hold output current
Package	QFN3×3-16
Operating temperature range(°C)	-40 to 125
Functional safety category

Wide Input Range: 2.8V to 5.5V
Wide Output Voltage Range from (VIN + 5V) to 70V
850kHz Switching Frequency
Less Than 1μA Shutdown Current
1:30 Output Voltage Programming
Adjustable Precision, Over-Current Protection
Internal 1×/1.8× Dual-Gain Current Mirror
Up to 2.5V Voltage Buffer for Full-Scale Output Current
Input Voltage UVLO
Over Temperature Protection
Full Chain Circuit: Bias-Mirror-Track/Hold
Compact Package: QFN3×3-16
-40°C to +85°C Operating Temperature Range

Evaluation Board

Photo of evaluation board
Photo of evaluation board
Photo of evaluation board

EVB_SY26501QDQ

EVB File

The EVB_SY26501QDQ is intended for evaluating a peak current mode controlled Boost regulator and high-side driver with accurate current monitor to drive the optical modules-SY26501QDQ.

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12

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