TLV62569 器件是一款同步降压 DC-DC 转换器,专门针对高效和紧凑型解决方案进行了优化。该器件集成的开关能够提供高达 2A 的输出电流。
在中等负载或重载条件下,该器件运行在脉宽调制 (PWM) 模式下,开关频率为 1.5MHz。在轻载情况下,该器件自动进入节能模式 (PSM),从而在整个负载电流范围内保持高效率。关断时,流耗减少至 2μA 以下。
TLV62569 的输出电压可通过一个外部电阻分压器进行调节。内部软启动电路可限制启动期间的浪涌电流。此外, 还内置了 诸如输出过流保护、热关断保护和电源正常输出等其他特性。该器件提供 SOT23 和 SOT563 两种封装。
器件型号 | 封装 | 封装尺寸(标称值) |
---|---|---|
TLV62569DBV | SOT23 (5) | 2.90mm x 2.80mm |
TLV62569PDDC | SOT23 (6) | |
TLV62569DRL | SOT563 (6) | 1.60mm x 1.60mm |
TLV62569PDRL | SOT563 (6) |
Changes from B Revision (July 2017) to C Revision
Changes from A Revision (March 2017) to B Revision
Changes from * Revision (December 2016) to A Revision
PIN NUMBER | I/O/PWR | DESCRIPTION | |||
---|---|---|---|---|---|
NAME | SOT23-5 | SOT23-6 | SOT563-6 | ||
EN | 1 | 1 | 5 | I | Device enable logic input. Logic high enables the device, logic low disables the device and turns it into shutdown. Do not leave floating. |
GND | 2 | 2 | 2 | PWR | Ground pin. |
SW | 3 | 3 | 4 | PWR | Switch pin connected to the internal FET switches and inductor terminal. Connect the inductor of the output filter to this pin. |
VIN | 4 | 4 | 3 | PWR | Power supply voltage input. |
PG | - | 5 | 6 | O | Power good open drain output pin for TLV62569P. The pull-up resistor should not be connected to any voltage higher than 5.5V. If it's not used, leave the pin floating. |
FB | 5 | 6 | 1 | I | Feedback pin for the internal control loop. Connect this pin to an external feedback divider. |
NC | - | - | 6 | O | No connection pin for TLV62569DRL. The pin can be connected to the output or the ground. Or leave it floating. |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Voltage(2) | VIN, EN, PG | –0.3 | 6 | V |
SW (DC) | –0.3 | VIN+0.3 | V | |
SW (AC, less than 10ns)(3) | –3.0 | 9 | V | |
FB | –0.3 | 5.5 | V | |
Operating junction temperature, TJ | –40 | 150 | °C | |
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±500 | V |
MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|
VIN | Input voltage | 2.5 | 5.5 | V | |
VOUT | Output voltage | 0.6 | VIN | V | |
IOUT | Output current | 0 | 2 | A | |
TJ | Operating junction temperature | –40 | 125 | °C | |
ISINK_PG | Sink current at PG pin | 1 | mA |