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  • The controller is an integrated circuit realized in BCD5 (BiCMOS-DMOS, version 5) fabrication that provides complete control logic and protection for high performance step-down DC-DC and niPoL converters.

    It is designed to drive N-channel MOSFETs in a synchronous rectified buck topology. The output voltage of the converter can be precisely regulated down to 600 mV with a maximum tolerance of ±0.8 % and it is also possible to use an external reference from 0 V to 2.5 V.
    The input voltage can range from 1.8 V to 14 V, while the supply voltage can range from 4.5 V to 14 V. High peak current gate drivers provide for fast switching to the external power section, and the output current can be in excess of 20 A. The PWM duty cycle can range from 0 % to 100 % with a minimum on-time (TON, MIN) lower than 100 ns making possible conversions with very low duty cycle at high switching frequency. The device provides voltage-mode control that includes a selectable frequency oscillator (250 kHz or 500 kHz).
    The error amplifier features a 10 MHz gain-bandwidth-product and 5 V/µs slew-rate that permits to realize high converter bandwidth for fast transient response. The device monitors the current by using the RDS(on) of both the high-side and low-side MOSFET(s), eliminating the need for a current sensing resistor and guaranteeing an effective over-current-protection in all the application conditions. When necessary, two different current limit protections can be externally set through two external resistors.
    During the soft-start phase a constant current protection is provided while after the soft-start the device enters in hiccup mode in case of over-current. During the soft-start, the sink mode capability is disabled in order to allow a proper start-up also in pre-biased output voltage conditions. After the soft-start the device can sink current. Other features are power good, master/slave synchronization (with 180° phase shift), over-voltage-protection, feed-back disconnection and thermal shutdown. The HTSSOP16 package allows the realization of really compact DC/DC converters.

    主要特性

    • Predictive anti-cross conduction control
    • High current embedded drivers
    • Selectable switching frequency 250KHz/500KHz
    • Programmable high-side and low-side RDS(on) sense over-current-protection
    • Power good output
    • Pre-bias start up capability
    • Over voltage protection
    • Master/slave synchronization with 180˚ phase shift
    • Thermal shut-down
    • External input voltage reference
    • 0% to 100% duty cycle
    • Input voltage range from 1.8V to 14V
    • Adjustable output voltage down to 0.6V with ±0.8% accuracy over line voltage and temperature (0˚C~125˚C)
    • Supply voltage range from 4.5V to 14V
    • TON lower than 100ns
    • Soft-start and inhibit
    • Fixed frequency voltage mode control
    • Package: HTSSOP16

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L6732
NRND
HTSSOP16 工业 Ecopack2

L6732

Package:

HTSSOP16

Material Declaration**:

Marketing Status

NRND

Package

HTSSOP16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

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样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L6732 没有经销商,请联系我们的销售办事处
NRND
EAR99 NEC Tube HTSSOP16 - - PHILIPPINES

L6732

供货状态

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

包装类型

Tube

封装

HTSSOP16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商