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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1200-1600 kHz |
| Output 1 | 3.3 V / 1 A |
| IC revision | J |
Description
The SP6652 is a high efficiency, synchronous buck regulator ideal for portable applications using one Li-Ion cell, with up to 1A of output current. The 1.4MHz switching frequency and PWM control loop are optimized for a small value inductor and ceramic output capacitor, for space constrained portable designs. In addition, the input voltage range of 2.7V to 5.5V; excellent transient response, output accuracy, and ability to transition into 100% duty cycle operation -- further extending useful battery life -- make the SP6652 a superior choice for a wide range of portable power applications. A logic level shutdown control, external clock synchronization, and forced-PWM or automatic control inputs are provided. Other features include soft-start, over current protection and 140ºC over-temperature shutdown.
Features
1A Output Current
- 1.4MHz Constant Frequency Operation
- 97% Efficiency Possible
- 0.5μA (Max.) Shutdown Current
- Adjustable Output Voltage
- No External FETs or Schottky Diode Required
- Uses Small Value Inductors and Ceramic Output Capacitors
- Low Dropout Operation: 100% Duty Cycle
- Soft Start and thermal Shutdown Protection
- Easy Frequency Synchonization
- Lead Free, RoHS Compliant package: l
- Small (3mm X 3mm) 10 Pin DFN or MSOP
Typical applications
- MP3 Players
- Mobile Phones
- PDAs, USB Devices
- Point of Use Power
- DSCs
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Pins | Type | L(mm) | H(mm) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 3.3 µH, 1.95 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance3.3 µH | Rated Current1.95 A | Saturation Current1.8 A | Self Resonant Frequency80 MHz | MountSMT | Pins2 | – | Length4.8 mm | Height1.8 mm | – | Operating Temperature -40 °C up to +125 °C | – | – | – | ||||
| WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.72 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1.72 A | Saturation Current1.65 A | Self Resonant Frequency70 MHz | MountSMT | Pins2 | – | Length4.8 mm | Height1.8 mm | – | Operating Temperature -40 °C up to +125 °C | – | – | – | ||||
 | WR-PHD Jumper, –, 3 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | Rated Current3 A | – | – | – | Pins1 | – | – | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | PackagingBag | |||
 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | Rated Current3 A | – | – | MountTHT | Pins36 | TypeStraight | Length91.44 mm | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag |