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参数资料
| 型号： | MAX8588ETM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/31页 |
| 文件大小： | 0K |
| 描述： | IC PMIC HI EFF LOW IQ 48-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 处理器 |
| 电源电压： | 2.6 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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High-Efficiency, Low-I Q PMIC with
Dynamic Core for PDAs and Smartphones
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NAME
LBI
CC1
FB1
BKBT
V7
V1
SLPIN
V2
FB2
CC2
POK
SCL
SDA
PWM3
LBO
FUNCTION
Dual-Mode?, Low-Battery Input. Connect to IN to set the low-battery threshold to 3.6V (no resistors needed).
Connect LBI to a resistor-divider for an adjustable LBI threshold. When IN is below the set threshold, LBO
output switches low. LBO is deactivated and forced low when IN is below the dead-battery (DBI) threshold
and when all REGs are disabled.
REG1 Compensation Node. Connect a series resistor and capacitor from CC1 to GND to compensate the
regulation loop. See the Compensation and Stability section .
REG1 Feedback Input. Connect FB1 to GND to set V1 to 3.3V. Connect FB1 to external feedback resistors
for other output voltages.
Input Connection for Backup Battery. This input can also accept the output of an external boost converter.
Also known as VCC_BATT. V7 is always active if main or backup power is present. It is the first regulator that
powers up. V7 has two states:
1) V7 tracks V1 if ON1 is high and V1 is in regulation.
2) V7 tracks V BKBT when ON1 is low or V1 is out of regulation.
REG1 Voltage-Sense Input. Connect directly to the REG1 output voltage. The output voltage is set by FB1 to
either 3.3V or adjustable with resistors.
Input to V1 and V2 Sleep Regulators. The input to the standby regulators at V1 and V2. Connect SLPIN to IN.
REG2 Voltage-Sense Input. Connect directly to the REG2 output voltage. The output voltage is set by FB2 to
either 3.3V/2.5V or adjustable with resistors.
REG2 Feedback Input. Connect to GND to set V2 to 2.5V on all devices. Connect FB2 to IN to set V2 to 3.3V.
Connect FB2 to external feedback resistors for other voltages.
REG2 Compensation Node. Connect a series resistor and capacitor from CC2 to GND to compensate the
regulation loop. See the Compensation and Stability section.
Power-OK Output. Open-drain output that is low when any of the V1–V6 outputs are below their regulation
threshold. When all activated outputs are in regulation, POK is high impedance. POK maintains a valid low
output with V7 as low as 1V. POK does not flag an out-of-regulation condition while REG3 is transitioning
between voltages set by serial programming. POK also does not flag for any REG channel that has been
turned off; however, if all REG channels are off (V1–V6), then POK is forced low. If IN < UVLO, then POK is
low. POK is expected to connect to nVCC_FAULT.
Serial Clock Input
Serial Data Input. Serial data programs the REG3 (core) and REG6 (VCC_USIM) voltage. REG3 and REG6
can be programmed even when off, but at least one of the ON_ pins must be logic-high to activate the serial
interface. On power-up, REG3 defaults to 1.3V and REG6 defaults to 0V.
Force V3 to PWM at All Loads. Connect PWM3 to GND for normal operation (skip mode at light loads). Drive
or connect high for forced-PWM operation at all loads for V3 only.
Low-Battery Output. Open-drain output that goes low when IN is below the threshold set by LBI.
Dual Mode is a trademark of Maxim Integrated Products, Inc.
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