参数资料
| 型号： | SCCSP900842R2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/15页 |
| 文件大小： | 0K |
| 描述： | IC POWER MGT 36-WLCSP |
| 标准包装： | 3,000 |
| 应用： | PC，PDA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-UFBGA，WLCSP |
| 供应商设备封装： | 36-WLCSP |
| 包装： | 带卷 (TR) |
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
POWER SUPPLY INPUT VOLTAGE (PVIN1)
This is the input voltage for the Buck-Boost DC/DC
converter. Input decoupling/filtering is required for proper
operation.
POWER GROUND (PGND)
Power Ground connection.
OUTPUT VOLTAGE (VOUTP)
This is the 3.3 V output node.
SWITCHING NODE 1 (VSW1P)
This output pin is the switching node when the device
operates in Buck mode. The inductor is connected between
this pin and the VSW2P pin.
SWITCHING NODE 2 (VSW2P)
This output pin is the switching node when the device
operates in Boost mode. The inductor is connected between
this pin and the VSW1P pin.
SWITCHING NODE 1 FEEDBACK (VSW1FB)
Feedback voltage from Switching Node 1. This pin must
be directly connected to the inductor terminal.
SWITCHING NODE 2 FEEDBACK (VSW2FB)
Feedback voltage from Switching Node 2. This pin must
be directly connected to the inductor terminal.
OUTPUT VOLTAGE POSITIVE FEEDBACK
(VOUTPFB)
This input must be connected to the positive end of the
output capacitor.
OUTPUT VOLTAGE NEGATIVE FEEDBACK
(VOUTMFB)
This input must be connected to the negative end (ground)
of the output capacitor.
ANALOG SUPPLY INPUT VOLTAGE (AVIN)
Supply voltage for the Buck-or-Boost Controller and LDO
regulator.
ANALOG GROUND (AGND)
Analog ground of the IC.
BOOST GATE DRIVE SUPPLY (PVIN2)
This pin is connected to the output pin, VOUTP.
LDO REGULATED OUTPUT (VREGOUT)
2.775 V LDO regulated output voltage.
REFERENCE BYPASS CAPACITOR (BGBYP)
Connect a 0.1 μ F decoupling filter capacitor between this
pin and GND.
1.8 V SUPPLY INPUT VOLTAGE (VIN1P8)
1.8 V supply for digital sub-circuits.
26 MHz CLOCK INPUT (CLK26M)
A 26 MHz clock input reference signal.
ENABLE (EN)
Active high enable input signal to turn on the 3.3 V output.
? EN = 1.8 V to enter Normal Operation Mode.
? EN = 1.2 V to enter Low Power Mode.
The Low Power Mode can only be entered after the Buck-
Boost has started up in Normal Operation.
POWER GOOD STATUS SIGNAL (STTS)
This is an active low output signal that indicates the status
of the output voltage. This signal will be high if the IC is under
thermal shutdown, IC is in current limit, or V OUTP is too low.
CURRENT SENSE SIGNAL (ISNS)
This output pin provides an analog voltage proportional to
the average output current.
900842
Analog Integrated Circuit Device Data
10
Freescale Semiconductor
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