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ST1PS02BQTR +BOM

400 mA nano-quiescent synchronous step-down converter with digital voltage selection, Power Good and AUX switch

Manufacturer:

STMicroelectronics
Mfr.Part #:

ST1PS02BQTR
Datasheet:

ST1PS02BQTR Datasheet (PDF)
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
Output Type:

Adjustable
EDA/CAD Models:

Request Free CAD Models for ST1PS02BQTR

Email: [email protected]

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Tel: +852 95804164

ST1PS02BQTR General Description

What sets the ST1PS02 apart is its customizable output voltage, which can be easily set using three digital control inputs. This flexibility allows for precise adjustment of the output voltage, ranging from 1.0 V to 3.3 V, to meet the specific requirements of your application. The ST1PS02 achieves remarkable efficiency levels with its enhanced PCC (peak current control) technology, requiring only a 2.2 µH inductor and two small capacitors for optimal performance

Key Features

500 nA input quiescent current at V_IN = 3.6 V (not switching)
92% typical efficiency at 10 mA load (V_IN = 3.6 V, V_OUT = 2.5 V)
100% duty cycle
1.8 V to 5.5 V input operating range
Undervoltage lockout: 1.57 V (V_IN falling, typ.)
Up to 400 mA output current capability
Low power control operation for the best efficiency
Embedded soft-start circuit
Tiny external components: L = 2.2 µH typ.
Settable inductor current limitation
Selectable output voltages: 1.0 V to 3.3 V
Output voltage Power Good
±1.5% output voltage accuracy (V_OUT, T_A = 25 °C)
Dynamic output voltage selection (D0, D1 and D2)
Auxiliary load switch Vout2 (AUX control input)
Available in TQFN12 package

Specifications

Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Adjustable
Number of Outputs	1	Voltage - Input (Min)	1.8V
Voltage - Input (Max)	5.5V	Voltage - Output (Min/Fixed)	1.8V
Voltage - Output (Max)	2.5V	Current - Output	400mA
Frequency - Switching	2MHz	Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)	Mounting Type	Surface Mount
Base Product Number	ST1PS02